Artist Valentina Fetisova transforms labradorite cabochons into remarkable works of art.

Provides a visual guide to the internal features of tourmaline as well as tourmaline inclusions in other gem hosts.

Reviews the advancements and major trends in laboratory-grown diamonds observed by GIA since 2007.

Characterizes an anorthoclase variety of alkali feldspar found in southeast Vietnam and evaluates its potential for commercial use.

Examines gem-quality cassiterite from southwest China and analyzes trace element chemistry to distinguish it from Bolivian cassiterite.

An overview of the Summer 2024 Gems & Gemology content.

Dr. Rodney Ewing, a member of the GIA Board of Governors from 2006 to 2015, passed away earlier this month at age 77.

Dr. Rodney Ewing, a member of the GIA Board of Governors from 2006 to 2015, passed away earlier this month at age 77.

Members of the first class to complete the GIA Graduate Gemologist® program in New York City gathered.

Experience the world of gemology in person with GIA at Couture and JCK Las Vegas.

Learn the latest on Madagascar sapphires and demantoid garnets from Wim Vertriest, GIA Manager of Field Gemology.

Experience the world of gemology in person with GIA at Couture and JCK Las Vegas.

A new book chronicling the life of “Jeweler to the Stars” William Ruser is available now.

GIA researchers identify zircon inclusions in several Mozambican ruby samples, potentially impacting origin determination criteria used for sources of East Africa ruby.

Ten Liberian corundum samples are examined in GIA’s Tokyo laboratory.

GIA’s Bangkok laboratory encounters two phenomenal gems while examining a parcel of emeralds from Pakistan.

Beryl and emerald specimens from a recent discovery in Newfoundland are examined at GIA.

An interesting bicolor beryl specimen composed of aquamarine and white beryl reportedly from Bahia, Brazil, is examined.

One-of-a-kind gold granulation jewelry by Zaffiro was featured in the AGTA designer showroom.