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

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.

CARLSBAD, Calif. – Sept. 5, 2019 – GIA released a software upgrade on Sept. 4 for the industry-leading GIA iD100® gem testing device, giving the instrument the ability to distinguish natural pink diamonds from laboratory-grown (HPHT and CVD) diamonds and diamond simulants.

CARLSBAD, Calif. – Nov. 18, 2019 – Combining the science and beauty of gemstones, the Fall 2019 Gems & Gemology (G&G) is full of dazzling imagery and detailed research.

CARLSBAD, Calif. – Aug. 19, 2019 – Aspiring gem and jewelry professionals in Shenzhen, China will now have direct access to GIA education programs through Peking University Resource College.

CARLSBAD, Calif. – April 8, 2019 – Retailers participating in GIA’s Retailer Support Program can now use an enhanced collection of colored stone materials to tell the story of these beautiful gemstones to their customers.

CARLSBAD, Calif. – Oct. 16, 2019 – Building on a successful pilot and feedback from small-scale colored gemstone miners in Tanzania, GIA will expand distribution of its innovative gem guide for artisanal miners to other communities and countries in Africa.

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。

GIA Facetware® is a free online service that allows you to access over 38.5 million diamond proportion settings from the GIA database so you can estimate the cut grade of a diamond.