Download the latest issue for articles about gemology and jewelry design, interviews, education program descriptions, schedules and more.

Starting in May, many Sri Lankan dealers have traveled to Ethiopia to buy this material, causing steep price increases in local gem markets. All of the mining around Chila is artisanal, but large ...

Explore diamond history, research, quality factors, and more in the GIA Gem Encyclopedia.

Designed for clients who seek in-depth insights into every aspect of a jewelry item. Comprehensive analysis of the diamonds in an item, including number of stones, shape, estimated carat weight, color ...

An Identification Report, with geographic origin added. For polished, loose or mounted natural alexandrite, demantoid, emerald, jade, opal, Paraíba tourmaline ...

In the spring of 2001, I was studying gemology in Yangon, Myanmar, thanks to the support of U Kyaw Thaung, a Burmese merchant from Mogok. It was a great period in my early life as a gemologist, living ...

Field reports, videos, photography, and firsthand accounts from mines and industry hot spots around the world. Search GIA's library catalog of 65,000 books, 230,000 images, 2200 videos, 1200 ...

Field reports, videos, photography, and firsthand accounts from mines and industry hot spots around the world.

The quarterly journal of the Gemological Institute of America.

Sally Eaton-Magaña, Christopher M. Breeding, and James E. Shigley ...

Existing methods of classifying garnets have proved to be inadequate to deal with some new types of garnets discovered recently. A new classification system based on the chemical analysis of more than ...