RUBY Q U A L I T Y FACTO RS Ruby can adjust the highest cost of any colored gemstone. The per-carat prices of fine-quality rubies have been rising eternally. For better-quality material, modest differences in color can make remarkable differences in value. The per-carat price of ruby can also increase
TH E C O LO R O F RU BY Color is the most remarkable factor affecting a ruby’s value. The finest ruby has a pure, vibrant red to modest purplish red color. In most markets, pure red colors command the highest prices and ruby with overtones of orange and purple are less valued. The color must be neither too dark nor
RUBY CLARITY
Standard Grade
People in the trade expect rubies to have at least some inclusions because inclusion-free rubies are practically nonexisten t. Ruby value can depend on how visible the inclusions are. Obvious inclusions, or inclusions that reduce transparency or brightness, lower a ruby’s value completel if large and eminent inclusions are located y. under the table facet, they greatly diminish the transparency, brilliance, and value of the
Fine Grade
Premium Grade
Super Premium Grade
RU BY Ruby rough is very expensive, so many C U Tas much weight as cutters try to conserve possible. They might fashion flattened ruby rough into shallow stones, even though light escapes through flattened pavilions, causing an unattractive seethrough area in the stone called a window. The most common shapes of fashioned rubies are ovals and cushions, with brilliantcut crowns of
RU BY S I Z E & W EIrubies G H over T one carat Fine-quality are very rare, But commercial-quality rubies are commonly available in a wide range of sizes. The price per carat goes up remarkably for ruby as it increases in size.
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