Sotheby’s Sells 555.55-ct Enigma Diamond for $4.3m
Sotheby’s sold the 55-sided, 555.55-ct Enigma diamond for $4.3 million. It’s the largest natural black diamond and largest cut diamond in…
Articles by
Lisa Rosen
Star Sapphires and the Daddy Moon: Gemstone Stories
You can make future heirlooms with colored gems. A soldier returns from Afghanistan and tells his wife the gemstone stories behind an amazing birthday…
What is Your Gemstone Personality?
Think of jewelry stones as reflections of you or the recipient. Learning about colored gems can help you find the gemstone personality you’re looking…
A Short History of Diaspore and its trade names Zultanite and Csarite
Publisher’s note: This short history was originally published by the late Stephen Kotlowski, in the public domain, and is reproduced…
2015 Tucson Gem and Mineral Show – IGS Member Report
Review of the 2015 Tucson Gem and Mineral Show by International Gem Society member Richard Edley.
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