The Rare, the Unusual, and the Obscure…

Posted on January 1, 2023 by Çigdem Lüle, PhD, FGA, GIA GG, DGA

The basic definition of a gemstone is a material that is beautiful, durable, and rare. Each feature has a broad meaning, and all are debatable. For instance, beauty is relative. Perhaps acceptable aesthetics is more…

GemWorld articles are accessible by GemGuide members only. To access our archive of articles and get many other great features and benefits, become a member now!

Become a member