The GIA Knowledge Sessions are a series of talks and seminars that engage participants in the most diverse and pressing issues in gemology today, including gemstone origin, laboratory-grown stones and new discoveries in field gemology.

Dr. John W. Valley, a member of the GIA Board of Governors since 2014, retired from the Board following their regular annual meeting held in early November in Carlsbad, CA.

GIA 正在採取強有力的行動，以回應關於實驗室製造鑽石切割幾乎與 GIA 分級天然鑽石相匹配的欺詐性 GIA 銘文的報告。

Come immerse yourself in a world of gems and jewelry design at the GIA Taiwan Campus Open House on August 24. Join us for hands-on experiences led by our staff that will expand your knowledge of diamonds and design techniques.

A valid student visa with GIA Hong Kong as the institute name is required for full-time On Campus programs including Graduate Gemologist, Graduate Diamonds and Graduate Colored Stones.

Describes GIA grading processes and what sets GIA reports apart.

New Mineral Named for Famed Gemologist John Koivula

GIA is offering exclusive promotional pricing for GIA Jade Report services from Feb. 12 to March 31, 2024.

GIA offers scholarships during two application periods each year for its gemology, jewelry, and design programs, courses, and lab classes. Apply here during the scholarship period.

No matter where you are in the world, you can submit diamonds, colored stones and pearls directly to any GIA laboratory location and be assured of consistent quality and service.

An overview of more than 30 posters presented at the Converge conference.

An overview of the Winter 2025 Gems & Gemology content.

CARLSBAD, Calif. – March 28, 2019 – On April 30, GIA will introduce the GIA Diamond Origin Report service which will confirm the country of origin of polished diamonds.