GRS Type Sunrise and Sunset Padparadscha v. GIA Padparadscha
A common issue customers and gem dealers face is when two labs disagree on a gemstone. A lot
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What is Sapphirine?
What is Sapphirine? The scintillating blue stone was given the name of “Sapphirine” due to its striking resemblance
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What are Birthstones?
What are Birthstones? Birthstones are stones that are associated with certain months of the year. January Birthstone Garnet
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What is Taaffeite?
Taaffeite Taaffeite’s History Originally thought to be spinel, Taaffeite was unknown to the world of gemology until a
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Russian Alexandrite’s History
Russian Alexandrite’s History The origins of the first Russian Alexandrite (Chrysoberyl with strong change) require official credit to
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Other Gemstones
Other Gemstones Some of the other commonly known gemstones are not listed. These may include: Peridot, Amethyst, Topaz,
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Christie’s & Sotheby’s Most Rare Alexandrites
In 2014, Christie’s auctioned off a 21 carat Russian Alexandrite in Geneva Magnificent Jewels, Switzerland. The pre-auction valuation
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What Makes a Stone Rare?
We believe that every gemstone’s degree of rarity depends on two critically connected elements: Availability & Market Desirability. At all
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