Gem Identification: Ongoing and Potential Future Challenges
Featured ArticlesOrnamental rocks, country-of-origin determination, colored coatings, and transparent ceramics are just a few of the predicaments facing gemologists today.
At the 2025 AGTA GemFair show in Tucson, I spoke about “The Changing World of Gemology: A…
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