The Geneva Jewels Auction: ONE [catalogue]

THE GENEVA JEWELS AUCTION: ONE GENEVA 6 NOVEMBER 2023

Front cover Lot 110, Fancy Intense Pink diamond ring, weighing 20.19 carats Back cover Lot 108, Yellow sapphire and diamond brooch, ‘Ballerina’, Van Cleef & Arpels Inside front cover Lot 109, Diamond ring, weighing 15.60 carats, Fred Inside back cover Lot 1, Gold demi-parure, ‘Monete,’ Bulgari

THE GENEVA JEWELS AUCTION: ONE GENEVA 6 NOVEMBER 2023 Auction & Viewing Location

Jewellery Department

Auction 6 November 2023, 3pm CET La Réserve Route de Lausanne 301, 1293 Bellevue Under the aegis of Maître Tristan Reymond, Huissier Judiciaire

Worldwide Head of Jewellery

Viewing 31 October–6 November The Ritz-Carlton Hotel de la Paix Quai du Mont-Blanc 11, 1201 Genève 31 October & 1 November: 10am–6.30pm 2 November – 5 November: 10am–7.30pm 6 November: 9am–12pm Sale Designation When sending in written bids or making enquiries please refer to this sale as CH060123 or The Geneva Jewels Auction: ONE.

Benoît Repellin brepellin@phillips.com International Business Director Myriam Christinazmchristinaz-@phillips.com Business Director Jack Shaw jshaw@phillips.com Specialist Louisa Eyre-Jackson leyrejackson@phillips.com Associate Specialist Roberta Belfer rbelfer@phillips.com

Absentee and Telephone Bids

Cataloguer

Tel +41 22 317 8181 Fax +41 22 317 8180 bidsgeneva@phillips.com

Lara Tabbara ltabbara@phillips.com

Photography

Mary Higonnet mhigonnet@phillips.com

Denis Hayoun, Diode Loïc Herin

Administrator

Sale Info Please refer to Phillips’ website www.phillips.com for the Conditions of Sale applicable to the auction.

Phillips’ Conditions of Sale

PHILLIPS SENIOR EXECUTIVES EDWARD DOLMAN Executive Chairman +1 212 940 1241 edolman@phillips.com

CHEYENNE WESTPHAL Global Chairwoman +44 20 7318 4044 cwestphal@phillips.com

STEPHEN BROOKS Chief Executive Officer +44 0 20 7318 4046 sbrooks@phillips.com

EXECUTIVES JONATHAN CROCKETT

JEAN-PAUL ENGELEN

Chairman, Asia, Head of 20th Century & Contemporary Art, Asia +852 2318 2023 jcrockett@phillips.com

President, Americas, Worldwide Co-Head of 20th Century & Contemporary Art +1 212 940 1390 jpengelen@phillips.com

HUGUES JOFFRE

JAMIE NIVEN

DEREK COLLINS

Senior Advisor to the CEO +44 207 901 7923 hjoffre@phillips.com

Senior Advisor to the CEO +1 917 880 2532 jniven@phillips.com

Senior Consultant to Chairman’s Office, Asia +852 2318 2000 derekcollins@phillips.com

VANESSA HALLETT

DEPUTY CHAIRMEN & CHAIRWOMEN SVETLANA MARICH

ROBERT MANLEY

PETER SUMNER

MIETY HEIDEN

Worldwide Deputy Chairman +44 20 7318 4010 smarich@phillips.com

Deputy Chairman, Worldwide Co-Head of 20th Century & Contemporary Art +1 212 940 1358 rmanley@phillips.com

Deputy Chairman, Europe, Senior International Specialist, 20th Century & Contemporary Art +44 20 7318 4063 psumner@phillips.com

Deputy Chairwoman, Head of Private Sales +44 20 7901 7943 mheiden@phillips.com

VIVIAN PFEIFFER

MARIANNE HOET

JEREMIAH EVARTS

CARY LEIBOWITZ

KELLY TROESTER

Deputy Chairman, Americas, Head of Business Development, Americas +1 212 940 1392 vpfeiffer@phillips.com

Deputy Chairwoman, Europe, Senior Specialist, 20th Century & Contemporary Art +32 3257 3026 mhoet@phillips.com

Deputy Chairman, Americas, Senior International Specialist, 20th Century & Contemporary Art +1 917 304 4329 jevarts@phillips.com

Deputy Chairman, Americas, Worldwide Co-Head of Editions +1 212 940 1222 cleibowitz@phillips.com

Deputy Chairwoman, Americas, Worldwide Co-Head of Editions +1 212 940 1221 ktroester@phillips.com

SCOTT NUSSBAUM

KEVIE YANG

THOMAS PERAZZI

PAUL BOUTROS

ALEXANDRE GHOTBI

Deputy Chairman, Americas, Senior International Specialist, 20th Century & Contemporary Art +1 212 940 1354 snussbaum@phillips.com

Deputy Chairwoman, Americas, Senior International Specialist, 20th Century & Contemporary Art +1 212 940 1254 kyang@phillips.com

Deputy Chairman, Watches, Head of Watches, Asia +852 2318 2030 thomasperazzi@phillips.com

Deputy Chairman, Watches, Head of Watches, Americas International Strategy Advisor +1 212 940 1293 pboutros@phillips.com

Deputy Chairman, Watches, Head of Watches, Continental Europe and Middle East +41 22 317 81 89 aghotbi@phillips.com

JAMES MARKS Deputy Chairman, Watches, International Head of Perpetual +44 7760 848 881 jmarks@phillips.com

Deputy Chairwoman, Americas, Worldwide Head of Photographs +1 212 940 1243 vhallett@phillips.com

JEWELS DEPARTMENT EUROPE

NEW YORK

CHINA

BENOÎT REPELLIN

EVA VIOLANTE

QING SHEN

Worldwide Head of Jewellery +41 79 313 6845 brepellin@phillips.com

Head of Department, Americas +1 917 717 1506 eviolante@phillips.com

Senior Consultant +86 137 0111 9671 qingshen@phillips.com

LOUISA EYRE-JACKSON

HONG KONG

THAILAND

JANET LAM

RIKA DILA

Senior Specialist +852 5508 3676 janetlam@phillips.com

Senior Consultant +66 818 186 878 rikadila@phillips.com

Specialist +41 79 574 77 13 leyrejackson@phillips.com

ROBERTA BELFER Associate Specialist +41 79 522 92 78 rbelfer@phillips.com

LANE MCLEAN Specialist, Client Liaison +44 20 7318 4032 lmclean@phillips.com

MYRIAM CHRISTINAZ International Business Director +41 22 317 81 84 mchristinaz- @phillips.com

LOUISA CHAN Head of Sale, Specialist +886 2 2758 5505 lchan@phillips.com

KOREA

MINHEE SUH

TAIWAN

Regional Director +82 2 797 8001 msuh@phillips.com

CINDY YEN

YEONAH LIM

General Manager, Taiwan +886 2 2758 5505 cyen@phillips.com

Associate Regional Representative +82 2797 8001 ylim@phillips.com

JACK SHAW

SINGAPORE

Business Director, Jewellery and Perpetual Watches +44 7503 679 779 jshaw@phillips.com

CRISTEL TAN International Specialist +65 9155 1016 cristeltan@phillips.com

CHRISTINE FERNANDO Regional Representative +65 9128 6277 christinefernando@phillips.com

Property of a Lady

1.

BULGARI Gold demi-parure, ‘Monete’ Comprising: a necklace, composed of gold flat curb-linking, supporting a fringe of ancient coins, length approximately 370mm; and a pair of ear clips, each signed Bulgari.

ESTIMATE CHF 30,000–50,000 $35,000–60,000

2.

MAUBOUSSIN Diamond ring Set with a brilliant-cut diamond, weighing 3.11 carats, size 53, signed Mauboussin, numbered, French maker’s mark and assay mark for gold.

Accompanied by GIA report no. 2235025877, stating that the diamond is E Colour, VS2 Clarity.

ESTIMATE CHF 32,000–50,000 $35,000–55,000

From an Important European Private Collection

3.

TIFFANY & CO. Sapphire and diamond bracelet Set with cabochon sapphires and brilliant-cut diamonds, length approximately 185mm, signed Tiffany & Co. ESTIMATE CHF 10,000–15,000 $11,000–17,000

4.

Emerald and diamond ring

Set with a cabochon emerald stated to weigh 4.69 carats, accented with brilliant-cut diamonds, size 51, French import mark for gold.

Accompanied by SSEF report no. 116845, stating that the emerald is of Colombian origin, with a minor amount of oil in fissures.

ESTIMATE CHF 36,000–55,000 $40,000–60,000

5.

STERLÉ Gold and diamond necklace, 1960s Of fringe design, accented with brilliant-cut diamonds, length approximately 430mm, signed Sterlé, numbered, French maker’s mark for Sterlé and assay marks for gold.

ESTIMATE CHF 14,000–22,000 $15,000–25,000

6.

Ruby and diamond ring Set with an oval ruby weighing 7.17 carats, the shoulders and shank accented with three square-cut diamonds on each side, size 52, indistinct marker’s mark and assay mark.

Accompanied by Gubelin report no. 20080020, stating that the ruby is of Mozambique origin, with no indications of heating.

ESTIMATE CHF 40,000–55,000 $45,000–60,000

Property of a Lady

7.

MAUBOUSSIN Gem-set and diamond parure, circa 1991 Comprising: a necklace, a pair of ear clips and a ring, each set with carved sapphires, rubies and emeralds of foliate design, accented with brilliant-cut diamond borders, necklace length approximately 170mm, ear clips measuring approximately 30mm, ring size 52, each signed Mauboussin, numbered, French assay marks for gold.

LITERATURE Marguerite de Cerval, Mauboussin, Paris 1992, page 239 for an illustration of the necklace.

ESTIMATE CHF 55,000–90,000 $65,000–100,000

Property of a Lady

8.

Diamond ring Set with a marquise-shaped diamond weighing 3.09 carats, accented with circular-cut diamonds, size 48.

Accompanied by GIA report no. 2225990040, stating that the diamond is F Colour, VVS2 Clarity.

ESTIMATE CHF 22,000–32,000 $25,000–35,000

From an Important European Private Collection

9.

HEMMERLE Pair of emerald ear clips The cabochon emeralds set within a mount of blackened gold, one stamped GH for Hemmerle, case stamped Hemmerle.

ESTIMATE CHF 13,000–20,000 $15,000–22,000

From an Important European Private Collection

10.

HEMMERLE Pair of sapphire ear clips Each cabochon sapphire set within a brushed gold mount, one stamped GH for Hemmerle, case stamped Hemmerle.

ESTIMATE CHF 10,000–15,000 $11,000–17,000

Founded in 1893, Hemmerle is a family-run jeweller, recognised globally for its audacity and craftsmanship. Incorporating unique and bold amalgams of material, the designs are as inventive as they are functional. Stones and found objects are sourced through extensive travel and re-purposed when combined with unconventional woods and metals, producing handcrafted pieces that explore the intersection between artistry and engineering.

With an ethos centred around pushing boundaries, Hemmerle’s jewels are works of art in themselves, representing unbounded curiosity, technical experimentation, evolving tradition, and aesthetic individuality. Rich in cultural references, the pieces are reflections of the timeless connection between past and present, with heritage at heart and innovation at the horizon.

Hemmerle jewels are included in the permanent collections of the Victoria & Albert Museum in London, the Metropolitan Museum of Art and the Cooper Hewitt Smithsonian Design Museum in New York, and the Die Neue Sammlung in Munich.

From an Important Private Collection

11.

HEMMERLE Pair of aquamarine ear clips Each set with a cushion-shaped aquamarine, accented with buff-topped calibré-cut aquamarines, maker’s mark for Hemmerle, pouch stamped Hemmerle.

ESTIMATE CHF 7,000–10,000 $8,000–11,000

From an Important European Private Collection

12.

HEMMERLE Pair of cultured pearl and tagua nut ear clips Each set with tagua nut and a cultured pearl measuring approximately 13.57 x 13.70mm, and 13.74 x 13.51mm, respectively, each signed Hemmerle, maker’s mark for Hemmerle, pouch stamped Hemmerle.

ESTIMATE CHF 5,000–8,000 $6,000–9,000

From an Important European Private Collection

13.

HEMMERLE Ruby, emerald and sapphire brooch Of floral design, set with a cushion-shaped ruby weighing 3.40 carats, accented with calibré-cut emeralds and similarly cut sapphires, signed Hemmerle, case stamped Hemmerle.

Accompanied by SSEF report no. 128830, stating that the ruby is of Burmese origin, with no indications of heating.

ESTIMATE CHF 35,000–50,000 $40,000–60,000

Property of a Private Collector

14.

HEMMERLE Pair of sapphire cufflinks Each set with a cushion-shaped sapphire, the terminals set with similarly cut smaller sapphires, maker’s mark for Hemmerle.

ESTIMATE CHF 10,000–15,000 $11,000–17,000

15.

VAN CLEEF & ARPELS Pair of ruby and diamond ear clips Each set with circular-cut rubies, accented with brilliant-cut diamonds, length approximately 25mm, each signed Van Cleef & Arpels, numbered, French maker’s mark for Van Cleef & Arpels and assay mark for gold.

ESTIMATE CHF 14,000–18,000 $15,000–20,000

Property of a Lady

16.

Ruby and diamond bangle Set with calibré-cut rubies, accented with brilliant-cut diamonds, inner circumference approximately 160mm.

ESTIMATE CHF 4,500–7,500 $5,000–8,000

From a Private Collection

17.

Fancy Intense Yellow diamond and gem set ring Set with a brilliant-cut fancy intense yellow diamond weighing 4.54 carats, accented with circular-cut sapphires, rubies and brilliant-cut diamonds, size 45.

Accompanied by GIA report no. 2225986466, stating that the diamond is Fancy Intense Yellow, Natural Colour, VS1 Clarity.

ESTIMATE CHF 35,000–55,000 $40,000–60,000

From a Private Collection

18.

Fancy Yellow diamond and gem set demi-parure Comprising: a brooch, modelled as a butterfly, set with two brilliant-cut fancy yellow diamonds weighing 1.07 carats and 1.08 carats, accented with circular-cut rubies and sapphires and brilliant-cut diamonds, measuring approximately 42 x 45 x 6mm; together with a pair of ear clips, each set with a brilliant-cut fancy yellow diamond weighing 1.43 carats and 1.54 carats respectively, length approximately 40mm.

Accompanied by four GIA reports, stating that the diamonds are Fancy Yellow, Natural Colour, VVS2, VS1, VVS1 and VVS2 Clarity respectively.

ESTIMATE CHF 15,000–25,000 $17,000–28,000

Property of a Lady

Σ 19.

Coral, onyx, and diamond sautoir and a ring The sautoir set with coral cabochons, highlighted with onyx and brilliant-cut diamonds, length approximately 340mm, the detachable pendant set with a pear-shaped cabochon coral, accented with onyx and brilliant-cut diamonds, measuring approximately 80 x 22mm, part of the sautoir detachable and can be worn as a bracelet, length approximately 235mm, the ring set with a cabochon coral, highlighted with a halo of brilliant-cut diamonds, size 57.

ESTIMATE CHF 12,000–18,000 $14,000–20,000

Property of a Lady

20.

Fancy Deep Brownish Yellow diamond ring Set with a cut-cornered square modified brilliant-cut fancy deep brownish yellow diamond weighing 24.07 carats, accented with brilliant-cut diamonds, size 52.

Accompanied by GIA report no. 222568262, stating that the diamond is Fancy Deep Brownish Yellow, Natural Colour, VS1 Clarity.

ESTIMATE CHF 135,000–220,000 $150,000–250,000

Σ 21.

CARTIER Coral and diamond brooch, 1960s Designed as two roses made of carved coral, the leaves set with brilliant-cut diamonds, measuring approximately 60 x 50 x 40mm, signed Cartier, numbered, French maker’s mark for Cartier and export marks for gold.

ESTIMATE CHF 14,000–22,000 $15,000–25,000

From an Important Private Collection

22.

Diamond ring Set with a circular-cut diamond weighing 8.63 carats, size 52 1/2.

ESTIMATE CHF 28,000–45,000 $30,000–50,000

Model wearing lots 24, 26 and 27

BOLD AND INNOVATIVE: PHILLIPS & CONTEMPORARY JEWELLERS

To inaugurate its first jewellery auction in Geneva, Phillips has handpicked five contemporary designers to be featured in the live sale, celebrating its values for innovation, talent, and curiosity.

Each maison has entrusted Phillips with two pieces, highlighting their unique creative philosophies and identities. The designers include Maison Alix Dumas, Silvia Furmanovich, Margaret, Viltier and Dries Criel, renowned for their bold ideas, pioneering designs, and striking jewels.

The contemporary group comprises a spinel and sapphire ‘Feuilles Birmanes’ ring, signed Maison Alix Dumas, exemplifying the designer’s technical skill and artistic sensibility, and a pair of wood marquetry, pink tourmaline, and diamond ‘Butterfly’ earrings by Silvia Furmanovich, embodying her fascination with the natural world and celebrating the earth’s abundant beauty.

Also included in the sale are a pair of aquamarine and diamond earrings by Margaret, exuding romance with their timeless, poetic design, a gold and diamond cuff signed Viltier, fusing traditional sophistication with modern dynamism, as well as a gold, enamel, and diamond ‘Flux’ ring designed by Dries Criel, unveiling the sensuality of abstract form.

The selection of contemporary jewels illuminates Phillips’ continued dedication to 20th century craftsmanship, embracing forward-thinking artists, advocating the pursuit of creative development, and encouraging inspired audacity.

23. • MAISON ALIX DUMAS Gold ring, ‘Eternité d’Or’ Of spherical design, size 52, signed Maison Alix Dumas, French maker’s mark and assay mark for gold, case stamped MAD Joaillerie.

ESTIMATE CHF 3,000–5,000 $3,500–6,000 LOT OFFERED WITH NO RESERVE

24.

MAISON ALIX DUMAS Spinel and sapphire ring, ‘Feuilles Birmanes’ Designed as two leaves, set with oval and circular-cut spinels, accented with circular-cut pink sapphires, size 42, signed Maison Alix Dumas, French maker’s mark and assay mark for mixed gold and silver.

ESTIMATE CHF 8,000–12,000 $9,000–14,000

Infusing her designs with artistry, Alix Dumas, founder of her eponymous maison, produces pieces that are dedicated to the exploration of colour and form. Akin to a sculptor, she works with her hands and directly with the material, using stones to enhance the natural beauty of metals. The process plays an important role in the creation of her final products, where the designs symbolise a dialogue between creativity and technique, and the results embody emblems of artistic expression.

Maison Alix Dumas has won several awards since its founding, including the Best Debuting Award at the Haute Couture Jewellery show in 2023, the Francéclat CSR Prize that same year, the Creativity and Design Award at Milano Jewellery Week and the Artistar – Sculpture to Wear Gallery Award in 2022. In 2021, her ‘Eternity’ ring was awarded the Alchemist Prize for Creative Audacity at the Timeless Jewels Show in Paris, and her ‘Eternity Night’ earrings received the Hand and Creation prize from the Paris District of the Rotary Club International.

25. • SILVIA FURMANOVICH Pair of wood, pink tourmaline and diamond earrings Each modelled as a butterfly, the marquetry wood wing set with a pear-shaped pink tourmaline and the antenna pavéset with brilliant-cut diamonds, measuring approximately 50 x 28 x 2mm, stamped SF for Silvia Furmanovich, case and pouch stamped Silvia Furmanovich.

ESTIMATE CHF 5,000–8,000 $6,000–9,000 LOT OFFERED WITH NO RESERVE

26. • SILVIA FURMANOVICH Wood and lapis lazuli clutch The marquetry wood clutch applied with butterfly motifs, the oval clasps set with lapis lazuli cabochons, measuring approximately 215 x 140 x 30mm, the interior signed Silvia Furmanovich, dust cover stamped Silvia Furmanovich.

ESTIMATE CHF 4,000–6,000 $4,500–7,000 LOT OFFERED WITH NO RESERVE

Based in Brazil, Silvia Furmanovich marries her fascination with nature to her respect for craftsmanship, producing remarkable jewels that celebrate the earth’s beauty and diversity. With generations of goldsmiths in her family, Silvia Furmanovich was exposed to the art of working with precious metals from a young age. Inspired by the métier, she eventually began developing herown line of creations, making sure to keep the handicraft tradition alive.

Collaborating with artisans from the Amazon, she incorporates an array of new materials in her pieces, including wood marquetry, shells, and bamboo, enriching her jewels with a kaleidoscope of colour, texture, and volume, and sharing the natural wonders of the rainforest with her global community. A visionary and an innovator, Silvia Furmanovich’s bold designs pay tribute to native, historical, and foreign cultures, and stand as symbols of nature’s wearable art.

Silvia Furmanovich won three prizes for innovation at the Couture Design Award in 2015, 2016 and 2019. In 2018, her India Collection was the recipient of the Town & Country Jewellery Award, and in 2019, she was nominated for the Jewellery Design Award at the Jewellers of America’s GEM Awards.

27.

MARGARET Pair of aquamarine and diamond earrings, ‘Chevron’ Each set with a cushion-shaped aquamarine, accented with single-cut diamonds set in foliate motifs, clip fittings, length approximately 76mm, signed Margaret, numbered.

ESTIMATE CHF 40,000–60,000 $45,000–65,000

28.

MARGARET Pearl, diamond and gold bangle, ‘Five Stars’ Set with graduated pearls, accented with brilliant-cut diamonds pavé-set in star motifs, inner circumference approximately 145mm, signed Margaret, numbered, pouch and box stamped Margaret.

Please note that the pearls have not been tested for natural origin.

ESTIMATE CHF 25,000–35,000 $28,000–38,000

Born from the collaboration between Oriana Melamed Sabrier and Candice Ophir, Margaret jewels return to the romantic essence at the heart of their design.

Bringing a modern twist to an antique aesthetic, the pieces connect the past with the present, the vintage with the modern, paying tribute to the stories that inspired their conception, and celebrating timeless artistry. With creations that aim to infuse craftsmanship with storytelling, Margaret produces heirlooms to be worn as emblems of romance, cherished from one generation to the next.

29.

VILTIER Gold and emerald ring, ‘Edge’ Set with circular-cut emeralds on each edge of the ring, size 54, signed VT for Viltier, French maker’s mark and assay mark for gold, pouch, box and case stamped Viltier.

ESTIMATE CHF 5,500–7,500 $6,500–8,500

30.

VILTIER Gold and diamond manchette, ‘Edge’ Set with brilliant-cut diamonds on each edge of the bangle, inner circumference approximately 155mm, signed VT for Viltier, French maker’s mark and assay mark for gold, case and box stamped Viltier.

ESTIMATE CHF 22,000–32,000 $25,000–35,000

Launched at the height of the pandemic, Viltier was founded in Paris from the friendship of Thomas Montier Leboucher and Iris de la Villardière. Seeking to bring statement pieces into the everyday world, Viltier’s creations are dynamic, colourful, and refined, bridging modernity with French savoir-faire. Inspired from and designed for present and future generations of wearers, the jewels are produced responsibly, with materials sourced ethically to insure traceability and quality. With a desire to transcend traditional norms surrounding beauty, Viltier’s designs are testaments of curiosity, innovation, and vitality.

In June 2023, Viltier’s individuality gained worldwide recognition after its gold and diamond manchette ‘Edge’ won the Best in Gold prize at the Couture Design Award in Las Vegas.

31.

DRIES CRIEL Gold and tiger’s eye bangle, ‘Lotus’ Set with geometric tiger’s eye panels, inner circumference approximately 165mm, signed Dries Criel, assay mark for gold, pouch stamped Dries Criel.

ESTIMATE CHF 6,000–9,000 $7,000–10,000

32. • DRIES CRIEL Gold, enamel and diamond ring, ‘Flux’ Applied with green enamel geometric patterns, accented with brilliant-cut diamonds, size 55, signed Dries Criel, assay mark for gold.

ESTIMATE CHF 4,000–6,000 $4,500–7,000 LOT OFFERED WITH NO RESERVE

Exploring the space between geometric and organic forms, Dries Criel’s expressive designs weave the bold with the sensual, the masculine with the feminine. He works with an array of traceable materials, from gold to gemstones and enamel, seeking inspiration from a multitude of sources, including classical and contemporary dance, as well as Ancient Egypt. Dries Criel collaborates with several talented craftsmen in Belgium and Italy to bring his work to life, producing timeless pieces that echo his values for freedom, individuality, beauty, and empowerment.

33.

CHAUMET Ruby and diamond choker, circa 1898 Of garland design and lattice motif, millegrain set with circular-cut and cushion-shaped rubies, cushion-shaped, circular- and rose-cut diamonds, supporting rose-cut diamond and cushion-shaped ruby motifs en pampilles, length approximately 315mm, unsigned.

Accompanied by a Chaumet certificate of authenticity.

ESTIMATE CHF 28,000–35,000 $30,000–50,000

From an Important Private Collection

34.

Pair of diamond ear studs Each set with a circular-cut diamond weighing 2.96 and 3.01 carats respectively, post and butterfly fittings.

ESTIMATE CHF 18,000–28,000 $20,000–30,000

Property of a Lady

35.

Natural pearl, cultured pearl and diamond pendant, 1930s Set with two button-shaped natural pearls measuring approximately 10.00-10.40 x 9.30mm and 10.00-10.35 x 9.30mm, two cultured pearls, and a cushion-shaped diamond, accented with circular-cut diamonds, measuring approximately 50 x 40mm.

Accompanied by SSEF report no. 128827, stating that two pearls are natural, saltwater, and two are cultured.

ESTIMATE CHF 9,000–13,000 $10,000–15,000

From a Private Collection

36.

Pair of natural pearl and diamond earrings, circa 1910 Each designed as a line of rose-cut diamonds supporting a drop-shaped natural pearl measuring approximately 8.4510.00 x 14.30mm and 8.80-9.90 x 12.80mm respectively, post and butterfly fittings, French import mark for gold.

Accompanied by SSEF report no. 72269, stating that the pearls are natural, saltwater.

Please note that the report is more than 5 years old and might require an update.

ESTIMATE CHF 7,000–10,000 $8,000–11,000

37.

Emerald and diamond jewel Set with an octagonal emerald weighing 4.92 carats, accented with circular-cut and cushion-shaped diamonds, measuring approximately 32 x 25mm.

Accompanied by AGL report no. 1092381, dated 3 May 2018, stating that the emerald is of Colombian origin, with no indications of clarity enhancement; together with an SSEF report.

ESTIMATE CHF 120,000–145,000 $130,000–160,000

From an Important Private Collection

38.

Diamond ring

Set with a cushion-shaped diamond weighing 9.95 carats, the shoulders decorated with baguette diamonds, size 51, sizing band.

ESTIMATE CHF 32,000–50,000 $35,000–55,000

39.

Ruby, natural pearl and diamond necklace, late 19th century Of openwork design, the pendant set with an oval ruby weighing 4.12 carats, accented with circular-cut diamonds and a button-shaped natural pearl measuring approximately 6.50-6.85 x 6.70mm, suspending a drop-shaped natural pearl measuring approximately 8.95-9.40 x 14.90mm, the chain with spectacle-set circular-cut diamonds, length measuring approximately 170mm, pendant length approximately 105mm.

Accompanied by SSEF report no. 132638, stating that the ruby is of Burmese origin, with no indications of heating, and the two pearls are natural, saltwater.

ESTIMATE CHF 72,000–110,000 $80,000–120,000

40.

Diamond brooch, late 19th century Of floral design, set throughout with circular-cut diamonds, accented with two marquise-shaped diamonds, measuring approximately 90 x 30mm.

ESTIMATE CHF 7,500–11,000 $8,000–12,000

41.

Pair of emerald and diamond earrings Each set with an emerald drop, suspended from a line of circular-cut and cushion-shaped diamonds, length approximately 50mm, fitted case.

Accompanied by SSEF report no. 67880, stating that the emeralds are of Colombian origin, with a moderate amount of oil in fissures.

ESTIMATE CHF 45,000–55,000 $50,000–60,000

42.

Diamond brooch, 1920s Of openwork geometric design, set throughout with circular-cut diamonds, measuring approximately 78 x 38 x 9mm, assay mark for platinum.

ESTIMATE CHF 40,000–60,000 $45,000–65,000

43.

Emerald and diamond ring, 1920s Set with an oval emerald weighing 2.91 carats, accented with circular-cut diamonds, size 52, numbered.

Accompanied by SSEF report no. 126442, stating that the emerald is of Colombian origin, with a minor amount of oil in fissures.

ESTIMATE CHF 30,000–50,000 $35,000–60,000

44.

BOUCHERON Diamond bracelet, circa 1930 Of geometric open-work design, set with five octagonal diamonds, accented with brilliant-cut diamonds, length approximately 185mm, signed Boucheron, French assay mark for gold.

ESTIMATE CHF 36,000–55,000 $40,000–60,000

45.

Emerald ring

Set with an octagonal step-cut emerald stated to weigh 3.08 carats, accented with calibré-cut synthetic sapphires, size 59.

Accompanied by SSEF report no. 84990, stating that the emerald is of Colombian origin, with no indications of clarity modification; together with an updated SSEF report.

ESTIMATE CHF 27,000–45,000 $30,000–50,000

From the collection of Mr. and Mrs. Earl Simcox Swensson

46.

Lacquer and silver bracelet, circa 1930

Designed as plaques decorated with lacquer and eggshell, alternating with smaller silver plaques, length approximately 194mm.

ESTIMATE CHF 4,500–6,300 $5,000–7,000

From the collection of Mr. and Mrs. Earl Simcox Swensson

47.

JEAN DESPRÉS Silver necklace, circa 1930 Designed as five tapering hammered plaques, length approximately 403mm, signed Jean Deprés, French maker’s mark and assay mark.

ESTIMATE CHF 9,000–14,000 $10,000–15,000

From the collection of Mr. and Mrs. Earl Simcox Swensson

48.

VAN CLEEF & ARPELS Diamond and sapphire clip brooch, 1920s; together with a similar clip Each of geometric design, set with a cabochon sapphire, highlighted with step-cut sapphires and single- and circular-cut diamonds, one clip brooch signed Van Cleef & Arpels, numbered.

ESTIMATE CHF 14,000–18,000 $15,000–20,000

49.

VAN CLEEF & ARPELS Sapphire and diamond ring, 1930s Set with an oval cabochon sapphire, accented with graduated baguette diamonds, size 47, signed Van Cleef & Arpels, numbered, French assay mark for platinum, pouch stamped Van Cleef & Arpels.

Accompanied by SSEF report no. 88610, stating that the sapphire is of Ceylon origin, with no indications of heating.

Please note that the report is more than 5 years old and might require an update.

ESTIMATE CHF 30,000–50,000 $35,000–60,000

50.

BULGARI Sapphire, ruby and diamond brooch Set with cabochon sapphires and rubies, accented with brilliant-cut diamonds, measuring approximately 35 x 30mm, signed Bulgari.

ESTIMATE CHF 20,000–28,000 $22,000–30,000

51.

CARTIER Nephrite, ruby, diamond and enamel clip, 1920s Applied with carved nephrite, accented with cabochon rubies, circular-cut diamonds and blue enamel, length approximately 28mm, signed Cartier.

ESTIMATE CHF 7,500–11,000 $8,OOO–12,OOO

52.

Ruby and diamond ring

Set with a cushion-shaped ruby weighing 3.31 carats, accented with calibré-cut rubies, circular-cut and baguette diamonds, size 54.

Accompanied by Gübelin report no. 23031097, stating that the ruby is of Burmese origin, with no indications of heating.

ESTIMATE CHF 32,000–45,000 $35,OOO–50,OOO

53.

BOIVIN Gem set brooch Designed as a shell, set with circular-cut gemstones, including topaz and variously coloured tourmaline, measuring approximately 32 x 28mm, signed René Boivin.

ESTIMATE CHF 18,000–28,000 $20,OOO–30,OOO

From a Private Collection

54.

BOUCHERON Sapphire and diamond bangle, 1940s Set with calibré-cut sapphires, accented with brilliant-cut diamonds, inner circumference approximately 150mm, signed Boucheron, numbered.

ESTIMATE CHF 15,000–24,000 $17,OOO–28,OOO

55.

CARTIER Pair of diamond and onyx ear clips, ‘Panthère’ Each pavé-set with brilliant-cut diamonds, accented with onyx, each signed Cartier, numbered, French maker’s mark and assay mark for gold, case stamped Cartier.

ESTIMATE CHF 11,000–14,000 $12,OOO–15,OOO

56.

Fancy Intense Yellow diamond ring Set with a cushion-shaped fancy intense yellow diamond weighing 6.07 carats, between shield-shaped diamond shoulders, size 52.

Accompanied by GIA report no. 2211650977, stating that the diamond is Fancy Intense Yellow, Natural Colour, VS1 Clarity.

ESTIMATE CHF 65,000–90,000 $72,OOO–100,OOO

57.

STERLÉ Emerald and diamond ring, 1960s Set with a cabochon emerald weighing 4.31 carats and a step-cut diamond weighing 5.82 carats, accented with pearshaped diamonds, size 52, signed Sterlé, French assay mark for gold.

Accompanied by SSEF report no. 131056, stating that the emerald is of Colombian origin, with a minor amount of oil in fissures; and GIA report no. 2231025851, stating that the diamond is F Colour, SI2 Clarity.

ESTIMATE CHF 90,000–135,000 $100,OOO–150,000

58.

BULGARI Pair of sapphire, ruby and diamond earrings Each set with a sugarloaf cabochon sapphire weighing 17.74 and 16.66 carats respectively, accented with calibrécut rubies and baguette diamonds, length approximately 23mm, each signed Bulgari, maker’s mark for Bulgari, post and hinged-back fittings.

Accompanied by SSEF report no. 83114 and no. 83115, stating that the sapphires are of Burmese origin, with no indications of heating; together with an updated SSEF report.

ESTIMATE CHF 315,000–500,000 $350,000–550,000

59.

Sapphire and diamond ring Set with an oval sapphire weighing 2.07 carats, highlighted with graduated circular-cut diamonds, size 52, French import mark for gold.

Accompanied by SSEF report no. 121650, stating that the sapphire is of Kashmir origin, with no indications of heating; together with a Gübelin report.

ESTIMATE CHF 26,000–32,000 $28,OOO–35,OOO

60.

BULGARI Gem set and diamond necklace, ‘Astrale’ The pendant designed as concentric diamond-set circlets accented with variously-cut gems including amethyst, citrine, topaz and tourmaline, length approximately 435mm, signed Bulgari, case stamped Bulgari.

ESTIMATE CHF 8,000–12,000 $9,OOO–14,OOO

61.

BULGARI Gem set and diamond wristwatch, ‘Astrale’ Of quartz movement, black dial, bezel applied with diamond-set concentric circlets, accented with variouslycut gems including amethyst, citrine, topaz, tourmaline and peridot, sword-shaped hands, satin strap, gold pin buckle, diameter 36mm, length approximately 200mm, dial, caseback and buckle signed Bulgari, numbered, Swiss hallmark for gold, fitted case and box stamped Bulgari.

ESTIMATE CHF 7,000–10,000 $8,OOO–11,000

62.

Yellow sapphire and ruby ring Set with a cushion-shaped yellow sapphire weighing 100.19 carats, accented with two pear-shaped rubies weighing 3.36 carats and 3.55 carats, size 52, Swiss hallmark for gold, maker’s mark.

Accompanied by Gübelin report no. 23060054, stating that the sapphire is of Ceylon origin, with no indications of heating; together with a Gübelin Appendix Letter and a Gemstone Rating.

ESTIMATE CHF 90,000–135,000 $100,OOO–150,000

Property of a Lady

63.

Ruby and diamond bracelet Set with oval rubies, accented with brilliant-cut diamonds, length approximately 180mm.

ESTIMATE CHF 90,000–135,000 $100,OOO–150,000

Property of a Lady

64.

Sapphire and diamond ring Set with an oval sapphire weighing 16.77 carats, accented with two half-moon diamonds, size 50.

Accompanied by SSEF report no. 129518, stating that the sapphire is of Ceylon origin, with no indications of heating.

ESTIMATE CHF 26,000–45,000 $30,000–50,000

Property of a Lady

65.

Diamond ring Set with a brilliant-cut diamond weighing 2.17 carats, the shoulders pavé-set with brilliant-cut diamonds, size 51.

Accompanied by GIA report no. 2225990080, stating that the diamond is E Colour, VS1 Clarity.

ESTIMATE CHF 12,000–18,000 $14,000–20,000

66.

Ruby, sapphire and diamond necklace

Set with oval, cushion-shaped and circular-cut rubies and similarly-cut sapphires, accented with brilliant-cut diamonds, length approximately 415mm.

Accompanied by Gübelin report no. 22087362, stating that three of the sapphires are of Burmese origin, with no indications of heating; and no. 22087361, stating that four of the rubies are of Burmese origin, with no indications of heating.

ESTIMATE CHF 90,000–135,000 $100,000–150,000

Property of a Lady

67.

Ruby and diamond ring

Set with a cushion-shaped ruby weighing 22.77 carats, the shoulders accented with marquise-shaped and brilliant-cut diamonds, size 56, with additional mount and party-jacket, set with circular-cut black diamonds, not illustrated.

Accompanied by SSEF report no. 132293, stating that the ruby is of East African origin, with no indications of heating and a minor amount of oil in fissures.

ESTIMATE CHF 110,000–160,000 $120,000–180,000

Property of a Lady

68.

Cultured pearl and diamond necklace and a pair of earrings The necklace of ribbon design, supporting a cultured pearl, accented with graduated brilliant-cut and baguette diamonds, length approximately 200mm; each earring set with a cultured pearl, suspended from a line of graduated brilliant-cut diamonds, the ribbon-shaped surmount set with graduated brilliant-cut diamonds, length approximately 45mm.

ESTIMATE CHF 14,000–20,000 $15,000–22,000

Property of a Lady

69.

Emerald and diamond ring Set with a step-cut emerald weighing 2.50 carats, within a cluster of brilliant-cut and baguette diamonds, size 56.

Accompanied by a gemmological report.

ESTIMATE CHF 7,500–11,000 $8,000–12,000

Property of a Lady

70.

Diamond demi-parure

Comprising: a necklace set with marquise-shaped, brilliantcut and baguette diamonds, central motif detachable and may be worn as a brooch, length approximately 410mm, one part detachable and may be worn as a bracelet, length approximately 170mm: and a pair of ear clips of cluster design, drops detachable.

ESTIMATE CHF 26,000–44,000 $30,000–50,000

Property of a Lady

71.

BULGARI Diamond ring Set with a brilliant-cut diamond weighing 5.73 carats, accented with baguette diamonds, size 52, signed Bulgari.

Accompanied by GIA report no. 2231024258, stating that the diamond is K Colour, VVS2 Clarity.

ESTIMATE CHF 35,000–55,000 $40,000–60,000

72.

VAN CLEEF & ARPELS Diamond and mother-of-pearl wristwatch, ‘Papillon’ Of quartz movement, mother-of-pearl round dial, applied with a mother-of-pearl and brilliant-cut diamond butterfly, sword-shaped hands, bezel, lugs and crown set with brilliant-cut diamonds, the bracelet pavé-set with brilliantcut diamonds, diameter approximately 28mm, inner circumference approximately 60mm, dial, caseback and buckle signed Van Cleef & Arpels, numbered, maker’s mark for Van Cleef & Arpels, Swiss hallmarks for gold, fitted case and box stamped Van Cleef & Arpels.

ESTIMATE CHF 9,000–12,000 $10,000–14,000

73.

Ruby and diamond ring Set with an oval ruby weighing 2.11 carats, accented with marquise-shaped and brilliant-cut diamonds, size 53.

Accompanied by a gemmological report.

ESTIMATE CHF 15,000–22,000 $16,000–24,000

From a Private Collection

74.

FRED LEIGHTON Diamond choker/tiara combination Designed as a cascade of brilliant-cut diamonds, suspending a series of collet-set brilliant-cut diamonds, inner circumference approximately 325mm, signed Fred Leighton, assay mark, fitted case stamped Fred Leighton, together with a tiara frame.

ESTIMATE CHF 72,000–110,000 $80,000–120,000

75.

CARTIER Diamond and mother-of-pearl wristwatch, ‘Le Cirque Animalier de Cartier’ Of quartz movement, mother-of-pearl round dial, swordshaped hands, crocodile set with brilliant-cut diamonds and cabochon emerald eyes, bezel and lugs pavé-set with brilliant-cut diamonds, toile-brossée strap, buckle set with brilliant-cut diamonds, diameter approximately 41mm, length approximately 205mm, dial, caseback and buckle signed Cartier, numbered, maker’s mark for Cartier, Swiss hallmarks for gold, fitted case and box.

ESTIMATE CHF 15,000–25,000 $17,000–28,000

76.

ALEXANDER LAUT Sapphire and diamond ring Set with a cushion-shaped sapphire stated to weigh 15.15 carats, within a frame of oval, marquise-shaped and brilliantcut diamonds, size 52, signed Alexander Laut, numbered.

Accompanied by AGL report no. CS 1073949, stating that the sapphire is of Burmese origin, with no indications of heating.

Please note that the report is more than 5 years old and might require an update.

ESTIMATE CHF 45,000–72,000 $50,000–80,000

77.

CARTIER Diamond and enamel bracelet Applied with black enamel, highlighted with brilliant-cut diamonds on a toile-brossée strap, the clasp set with brilliant-cut diamonds, length approximately 75mm, signed Cartier, numbered, French assay marks for gold.

ESTIMATE CHF 10,000–15,000 $11,000–17,000

Σ 78.

CARTIER Diamond and mother-of-pearl wristwatch, ‘Promenade d’une Panthère’ Of mechanical movement, dark purple mother-of-pearl round dial, rhodium-finish steel sword-shaped hands, bezel and lugs pavé-set with brilliant-cut diamonds, crown set with an inverted brilliant-cut diamond, oscillating panther set with brilliant-cut diamonds and black lacquer spots, leather strap, buckle set with brilliant-cut diamonds, diameter 42.75mm, length approximately 220mm, dial, caseback and buckle signed Cartier, numbered, maker’s mark for Cartier, Swiss hallmark for gold, fitted case and box stamped Cartier.

ESTIMATE CHF 25,000–50,000 $28,000–55,000

79.

Sapphire and diamond ring

Set with an oval sapphire stated to weigh 14.10 carats, between heart-shaped diamond shoulders, size 50.

Accompanied by a gemmological report.

ESTIMATE CHF 24,000–32,000 $25,000–35,000

Property of a Lady

80.

Diamond necklace Set throughout with brilliant-cut diamonds, length approximately 390mm, French maker’s mark and assay mark for gold.

ESTIMATE CHF 18,000–26,000 $20,000–30,000

81.

ALEXANDER LAUT Very Light Blue diamond ring Set with a pear-shaped very light blue diamond weighing 1.33 carats, highlighted with pear-shaped diamonds of pink tint and brilliant-cut diamonds, size 51, signed Alexander Laut, maker’s mark.

Accompanied by GIA report no. 510119767182, stating that the diamond is Very Light Blue, Natural Colour, VS1 Clarity.

Please note that the report is more than 5 years old and might require an update.

ESTIMATE CHF 63,000–90,000 $70,000–100,000

Property of a Lady

82.

Diamond ring Set with a brilliant-cut diamond weighing 3.06 carats, size 57.

ESTIMATE CHF 16,000–20,000 $17,000–22,000

83.

Emerald and diamond bracelet Set with seven octagonal step-cut emeralds weighing 2.32 , 2.76, 2.60, 1.98, 2.32, 4.01 and 1.80 carats, accented with marquise-shaped and baguette diamonds, length approximately 185mm.

Accompanied by eight SSEF reports stating that the emeralds are of Colombian origin, with a minor to a moderate amount of oil in fissures.

ESTIMATE CHF 27,000–45,000 $30,000–50,000

From a Private Collection

84.

Diamond bracelet Composed of five rows of brilliant-cut diamonds, length approximately 175mm, Russian assay marks for gold.

ESTIMATE CHF 35,000–50,000 $40,000–60,000

85.

Emerald and diamond ring Set with a step-cut emerald weighing 2.24 carats, accented with brilliant-cut diamonds, size 53, numbered.

Accompanied by SSEF report no. 125789, stating that the emerald is of Colombian origin, with a minor amount of oil in fissures.

ESTIMATE CHF 15,000–20,000 $17,000–24,000

From a Private Collection

86.

Pair of diamond ear clips

Each set with a central brilliant-cut diamond, weighing 1.95 carats and 2.00 carats respectively, accented with marquise-shaped and brilliant-cut diamonds, length approximately 70mm, French assay mark for platinum.

ESTIMATE CHF 24,000–35,000 $28,000–40,000

87.

Pair of sapphire and diamond earrings

Each surmount modelled as a flower, set with brilliant-cut diamonds, supporting a detachable pear-shaped sapphire weighing 13.82 carats and 13.66 carats respectively, length approximately 50mm, post and hinged-back fittings.

Accompanied by AGL report no. 8091202 A and B, stating that the sapphires are of Ceylon origin, with no indications of heating.

ESTIMATE CHF 80,000–130,000 $90,000–140,000

From a Private Collection

88.

Sapphire and diamond bracelet, 1950s

Set with seven oval and cushion-shaped sapphires, accented with graduated oval, triangular and baguette diamonds, length approximately 200mm.

Accompanied by SSEF report no. 103903, stating that the sapphires are of Burmese origin, with no indications of heating.

ESTIMATE CHF 35,000–55,000 $40,000–60,000

89.

Sapphire and diamond ring

Set with a step-cut sapphire weighing 5.02 carats, accented with baguette diamonds, size 50.

Accompanied by SSEF report no. 85940 and Gübelin report no. 16060103, each stating that the sapphire is of Kashmir origin, with no indications of heating.

Please note that the reports are more than 5 years old and might require an update.

ESTIMATE CHF 180,000–270,000 $200,000–300,000

90.

MARIANNE OSTIER Pair of cultured pearl, emerald and diamond ear clips Each surmount set with brilliant-cut diamonds, with interchangeable elements, including emerald drops, accented with brilliant-cut diamonds, cultured pearl drops measuring approximately 13.33 x 12.34mm and 13.99 x 12.32 mm, accented with brilliant-cut diamonds, and cultured pearls measuring approximately 8.83 x 8.85mm and 8.97 x 8.99mm, maker’s mark for Marianne Ostier, case stamped Ostier.

Accompanied by AGL report no. 1131928, stating that the emeralds are of Colombian origin, with indications of minor to moderate traditional clarity enhancement.

ESTIMATE CHF 36,000–55,000 $40,000–60,000

From an Important Private Collection

91.

Diamond bracelet Set with circular-cut diamonds, length approximately 180mm.

ESTIMATE CHF 6,500–9,000 $7,000–10,000

92.

Emerald and diamond ring Set with a step-cut emerald weighing 7.17 carats, accented with oval diamonds, size 51.

Accompanied by SSEF report no. 128150, stating that the emerald is of Colombian origin, with no indications of clarity modification.

ESTIMATE CHF 90,000–135,000 $100,000–150,000

93.

GRAFF Ruby and diamond ring Set with a cushion-shaped ruby weighing 9.37 carats, within a frame of brilliant-cut diamonds, size 53, signed Graff.

Accompanied by Gübelin report no. 20110081, stating that the ruby is of East African origin, with no indications of heating.

ESTIMATE CHF 290,000–450,000 $320,000–500,000

94.

Emerald and diamond ring Set with a step-cut emerald weighing 8.75 carats, highlighted with brilliant-cut diamonds, size 53.

Accompanied by AGL report no. CS 68068, stating that the emerald is of Colombian origin, with a minor amount of oil in fissures.

Please note that the report is more than 5 years old and might require an update.

ESTIMATE CHF 130,000–160,000 $140,000–180,000

Model wearing lots 56, 92, 93, 94.

95.

Emerald and diamond necklace Of ribbon design, supporting a drop-shaped emerald measuring approximately 13.15-15.30 x 23.80mm, accented with circular-cut and baguette diamonds, the clasp set with shield-shaped, hexagonal and baguette diamonds, length approximately 195mm, French maker’s mark and assay mark for gold.

Accompanied by SSEF report no. 132179, stating that the emerald is of Colombian origin, with a minor amount of oil in fissures.

ESTIMATE CHF 140,000–200,000 $160,000–220,000

96.

BULGARI Diamond brooch The flower buds set with brilliant-cut diamonds and the petals with pear-shaped diamonds, the sprays set with marquise-shaped, brilliant-cut and graduated baguette diamonds, measuring approximately 100 x 58 x 15mm, signed Bulgari, fitted case stamped Bulgari.

ESTIMATE CHF 40,000–55,000 $45,000–60,000

Property of a Lady

97.

VAN CLEEF & ARPELS Sapphire and diamond bracelet, 1950s Set with oval sapphires, accented by baguette and brilliant-cut diamonds, length approximately 185mm, signed Van Cleef & Arpels, numbered, French maker’s mark.

ESTIMATE CHF 90,000–135,000 $100,000–150,000

Property of a Lady

98.

VAN CLEEF & ARPELS Diamond brooch Of flower design, set with brilliant-cut diamonds, the stem set with baguette diamonds, measuring approximately 58 x 30mm, signed Van Cleef & Arpels, numbered, pouch stamped Van Cleef & Arpels.

ESTIMATE CHF 9,000–13,000 $10,000–15,000

Property of an Important Private Collector

99.

BOODLES Fancy Intense Purplish Pink diamond ring Set with an oval fancy intense purplish pink diamond weighing 1.52 carats, the shank accented with brilliantcut diamonds, size 52, maker’s mark for Boodles, British hallmarks for platinum.

Accompanied by GIA report no. 12934025, stating that the diamond is Fancy Intense Purplish Pink, Natural Colour, SI2 Clarity.

ESTIMATE CHF 180,000–270,000 $200,000–300,000

Property of an Important Private Collector

100.

BOODLES Fancy Intense Blue diamond ring Set with a marquise-shaped fancy intense blue diamond weighing 0.72 carats, accented with a brilliant-cut diamond surround and shoulders, size 48, signed Boodles, maker’s mark, British hallmarks for platinum and London.

Accompanied by GIA report no. 2145969084, stating that the diamond is Fancy Intense Blue, Natural Colour, Internally Flawless.

ESTIMATE CHF 55,000–90,000 $60,000–100,000

101.

STERLÉ Pair of natural pearl and diamond ear clips, 1960s Each set with a drop-shaped natural pearl weighing 23.84 carats and 22.88 carats and measuring 12.72-14.91 x 18.51mm and 13.50-14.12 x 17.25mm respectively, accented with brilliant-cut diamonds, suspended from a surmount set with a marquise-shaped and baguette diamonds, signed Sterlé, numbered, French assay mark for gold.

Accompanied by SSEF report no. 110669, stating that the pearls are natural, saltwater.

ESTIMATE CHF 270,000–450,000 $300,000–500,000

102.

BOIVIN Cultured pearl and enamel clip, circa 1930 Set with graduated cultured pearls, bordered with black enamel, length approximately 42mm, French import mark for silver.

Accompanied by a certificate from Françoise Cailles, stating that it is a work by Rene Boivin with a design by Suzanne Belperron.

ESTIMATE CHF 18,000–28,000 $20,000–30,000

Property of a Lady of Title

103.

Sapphire and diamond ring, circa 1920 Set with an oval sapphire, highlighted with a halo of circular-cut diamonds, size 53.

Accompanied by SSEF report no. 130787, stating that the sapphire is of Ceylon origin, with no indications of heating.

ESTIMATE CHF 6,000–9,000 $7,000–10,000

From an Important Private Collection

104.

Pair of diamond earrings, 1920s Each of geometric design, the surmounts set with circularcut diamonds, accented with single-cut diamonds, each supporting a circular-cut diamond weighing 1.85 and 2.09 carats respectively, post and butterfly fitting, length approximately 45mm.

ESTIMATE CHF 4,500–7,500 $5,000–8,000

From an Important Private Collection

105.

CARTIER Diamond bracelet, circa 1925 Set with circular-cut and square-cut diamonds, length approximately 190mm, signed Cartier, numbered.

ESTIMATE CHF 72,000–110,000 $80,000–120,000

106.

CARTIER Diamond brooch, circa 1930 Of openwork geometric design, set with circular-cut and baguette diamonds, measuring approximately 44 x 23 x 5mm, signed Cartier, numbered.

ESTIMATE CHF 11,000–15,000 $12,000–17,000

107.

Fancy Intense Yellow diamond ring Set with a round-cornered rectangular modified brilliant-cut fancy intense yellow diamond weighing 54.27 carats, size 51.

Accompanied by GIA report no. 6214174329, stating that the diamond is Fancy Intense Yellow, Natural Colour, Internally Flawless.

ESTIMATE CHF 1,170,000–1,620,000 $1,300,000–1,800,000

Property of a Lady

108.

VAN CLEEF & ARPELS Yellow sapphire and diamond brooch, ‘Ballerina’ Designed as a ballerina, the dress set with graduated circular-cut yellow sapphires, bordered with brilliant-cut diamonds, the head set with a rose-cut diamond, with a halo of brilliant-cut diamonds, the ballet slippers each set with a circular-cut yellow sapphire measuring approximately 60 x 35 x 15mm, signed Van Cleef & Arpels, numbered, French maker’s marks for Van Cleef & Arpels and French assay marks for gold, fitted case and box stamped Van Cleef & Arpels.

Accompanied by a certificate of authenticity by Van Cleef & Arpels.

ESTIMATE CHF 72,000–110,000 $80,000–120,000

Property of a Lady

109.

FRED Diamond ring Set with an oval diamond weighing 15.60 carats, accented with baguette diamonds, size 49, signed Fred, French assay marks for gold.

Accompanied by GIA report no. 2215389778, stating that the diamond is D Colour, VS2 Clarity; together with a Type IIa classification letter.

ESTIMATE CHF 450,000–720,000 $500,000–800,000

≈ 110.

Fancy Intense Pink diamond ring

Set with a cut-cornered rectangular modified brilliant-cut fancy intense pink diamond weighing 20.19 carats, accented with baguette diamonds, size 51.

Accompanied by GIA report no. 6223260450, stating that the diamond is Fancy Intense Pink, Natural Colour, VVS1 Clarity.

ESTIMATE CHF 10,000,000–15,000,000 $11,000,000–16,500,000

PAST RESULTS FOR FANCY INTENSE PINK DIAMONDS

$ 13,245,750 Price per carat: $ 1,889,551 Fancy intense purplish pink diamond weighing 7.04 carats, VS1 Clarity, Type IIa Sotheby’s Geneva, May 2017 ESTIMATE: $ 8,000,000 – 12,000,000

$ 23,274,064 Price per carat: $ 1,635,563 THE PERFECT PINK Fancy intense pink diamond weighing 14.23 carats, VVS2 Clarity, Type IIa Christie’s Hong Kong, November 2010 ESTIMATE: $ 14,000,000 – 19,000,000

$ 10,263,070 Price per carat: $ 1,468,250 Fancy intense pink diamond weighing 6.99 carats, VVS1 Clarity, Potential Christie’s Geneva, May 2023 ESTIMATE: $ 3,000,000 – 5,000,000

$ 17,480,721 Price per carat: $ 1,451,887 THE MARTIAN PINK Fancy intense pink diamond weighing 12.04 carats, VS1 Clarity, Type IIa Christie’s Hong Kong, May 2012 ESTIMATE: $ 8,000,000 – 12,000,000

$ 16,232,308 Price per carat: $ 1,229,720 Fancy intense pink diamond weighing 13.20 carats, Internally Flawless Sotheby’s Geneva, November 2016 ESTIMATE: $ 9,000,000 – 14,000,000

$ 20,778,352 Price per carat: $ 1,217,244 Fancy intense pink diamond weighing 17.07 cartas, VVS1 Clarity, Potential Sotheby’s Geneva, November 2016 ESTIMATE: $ 12,000,000 – 15,000,000

$ 9,648,724 Price per carat:$ 1,096,446 Fancy intense pink diamond weighing 8.80 carats, VVS1 Clarity, Type IIa Christie’s Hong Kong, November 2017 ESTIMATE: $ 8,800,000 – 12,000,000

$ 5,765,000 Price per carat: $ 1,089,792 Fancy intense purplish pink diamond weighing 5.29 carats, VS2 Clarity, Type IIa Christie’s New York, April 2015 ESTIMATE: $ 3,500,000 – 5,500,000

$ 15,338,176 Price per carat: $ 958,636 THE ARTEMIS PINK Fancy intense pink diamond weighing 16.00 carats, VVS2 Clarity, Type IIa Sotheby’s Geneva, May 2017 ESTIMATE: $ 12,500,000 – 18,000,000

$ 5,765,000 Price per carat: $ 945,082 Fancy intense pink diamond weighing 6.10 carats, VVS1 Clarity, Type IIa Christie’s New York, April 2014 ESTIMATE: $ 4,000,000 – 6,000,000

$ 3,801,000 Price per carat: $ 931’618 Fancy intense pink diamond weighing 4.08 carats, VS2 Clarity, Type IIa Sotheby’s New York, June 2022 ESTIMATE: $ 1,200,000 – 1,800,000

INDEX MAKER’S INDEX ALEXANDER LAUT

76, 81

BOIVIN

53, 102

BOODLES

99, 100

BOUCHERON

44, 54

BULGARI

1, 50, 58, 60, 61, 71, 96

CARTIER

21, 51, 55, 75, 77, 78, 105, 106

CHAUMET

33

DRIES CRIEL

31, 32

FRED

109

FRED LEIGHTON

74

GRAFF

93

HEMMERLE

9, 10, 11, 12, 13, 14

JEAN DESPRÉS

47

MAISON ALIX DUMAS

23, 24

MARGARET

27, 28

MARIANNE OSTIER

90

MAUBOUSSIN

2, 7

SILVIA FURMANOVICH

25, 26

STERLÉ

5, 57, 101

TIFFANY & CO.

3

VAN CLEEF & ARPELS

15, 48, 49, 72, 97, 98, 108

VILTIER

29, 30

COLOURLESS DIAMOND INDEX COLOUR

CLARITY

CARAT WEIGHT

CUT

LOT

D

VS2, Type IIa

15.60

Oval Modified Brilliant

109

E

VS1

2.17

Round Brilliant

65

E

VS2

3.11

Circular Brilliant

2

F

VVS2

3.09

Marquise Brilliant

8

F

SI2

5.82

Square Emerald Cut

57

K

VVS2

5.73

Round Brilliant

71

COLOURED DIAMOND INDEX COLOUR

CLARITY

CARAT WEIGHT

CUT

LOT

Fancy Intense Pink

VVS1

20.19

Cut-Cornered Rectangular Modified Brilliant

110

Fancy Intense Purplish Pink

SI2

1.52

Oval Modified Brilliant

99

Fancy Intense Blue

Internally Flawless

0.72

Marquise Brilliant

100

Very Light Blue

VS1

1.33

Modified Pear Brilliant

81

Fancy Intense Yellow

Internally Flawless

54.27

Round-Cornered Rectangular Modified Brilliant

107

Fancy Intense Yellow

VS1

6.07

Cushion Modified Brilliant

56

Fancy Intense Yellow

VS1

4.54

Round Brilliant

17

Fancy Deep Brownish Yellow

VS1

24.07

Cut-Cornered Square Modified Brilliant

20

Fancy Yellow

VVS2, VS1 & VVS1

1.07 & 1.08; 1.43 & 1.54

Round Brilliant

18 (Brooch & Earrings)

SAPPHIRE INDEX ORIGIN

TREATMENT

CARAT WEIGHT

CUT

LOT

Kashmir

No heat

5.02

Step

89

Kashmir

No heat

2.07

Oval

59

Burma

No heat

17.74 & 16.66

Cabochon

58 (Earrings)

Burma

No heat

15.15

Cushion

76

Burma

No heat

2.30 to 0.90

Oval & Cushion

88 (Bracelet)

Ceylon

No heat

100.19

Cushion

64

Ceylon

No heat

16.77

Oval

64

Ceylon

No heat

Approx. 14.00

Cabochon

49

Ceylon

No heat

13.82 & 13.66

Pear

87 (Earrings)

Ceylon

No heat

Approx. 5.00

Oval

103

Ceylon

No heat

100.19

Cushion

62

ORIGIN

TREATMENT

CARAT WEIGHT

CUT

LOT

Burma

No heat

4.12

Oval

39

Burma

No heat

3.40

Cushion

13

Burma

No heat

3.31

Cushion

52

East Africa

No heat, minor oil

22.77

Cushion

67

East Africa

No heat

9.37

Cushion

93

Mozambique

No heat

7.17

Oval

6

RUBY INDEX

EMERALD INDEX ORIGIN

TREATMENT

CARAT WEIGHT

CUT

LOT

Colombia

No oil

7.17

Step

92

Colombia

No oil

4.92

Octagonal

37

Colombia

No oil

3.08

Step

45

Colombia

Minor oil

Approx. 30.00

Drop-shaped

95

Colombia

Minor oil

8.75

Step

94

Colombia

Minor oil

4.69

Cabochon

4

Colombia

Minor oil

4.31

Cabochon

57

Colombia

Minor oil

2.91

Oval

43

Colombia

Minor oil

2.24

Step

85

Colombia

Minor to moderate oil

Approx. 54.00-55.00

Drop-shaped

90 (Earrings)

Colombia

Minor to moderate oil

2.32, 2.76, 2.60, 1.98, 2.32, 4.01 & 1.80

Step

83 (Bracelet)

Colombia

Moderate oil

Approx. 10.00 & 9.70

Drop-shaped

41 (Earrings)

NATURAL PEARL INDEX NO. OF NATURAL SALTWATER PEARLS

MEASUREMENTS

SHAPE

LOT

2

Approx. 10.00-10.40 x 9.30mm & 10.00-10.35 x 9.30mm

Button

35 (Earrings)

2

8.45-10.00 x 14.30mm & 8.80-9.90 x 12.80mm

Drop

36 (Earrings)

2

12.72-14.91 x 18.51mm & 13.50-14.12 x 17.25mm

Drop

101 (Earrings)

2

Approx. 6.50-6.85 x 6.70mm & 8.95-9.40 x 14.90

Button & Drop

39 (Necklace)

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