Outshining Gold: Imperial Topaz Rough from The Black Gold City
Most fine imperial topaz rough hails from Ouro Preto. Learn about the Black Gold city and its orange & yellow imperial topaz facet rough.
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- Sep 2, 2020
The Montana Sapphire: Once Hidden Gem of the Treasure State
Learn about Montana sapphire facet rough, its history, deposit locations, and why it’s become a favorite of gem lovers!
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- Jul 7, 2020
California Tourmaline: American Treasure Fit for an Empress
California Tourmaline is a dazzling representative of US facet rough. Learn about its history and relationship to other tourmaline.
984 views
- May 13, 2020
Phenomena in Songea Sapphires
The Songea sapphire is a rising star within the gemstone industry. Learn about the properties of these remarkable color change sapphires.
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