A cordierite with a color not seen in the GIA lab is examined in New York.

GIA is adding a report comment for the historical trade term 'Hanadama' to distinguish a designated quality range of cultured Akoya pearls.

GIA’s industry-leading and globally-recognized diploma and certificate programs educate professionals with the skills needed for success in the gem and jewelry industry.

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

Beginning later this year, GIA will start using descriptive terms to characterize the quality of laboratory-grown diamonds

鑑於業界日漸關注祖母绿填充物的資訊，GIA 將由 12 月 15 日開始在其祖母綠報告中加入填充物鑑定服務。此填充物鑑定服務為自選項目，服務新推出期間將免費提供。

GIA will temporarily expand services offered by the GIA Laboratories DMCC and the GIA Hong Kong laboratory.

GIA, whose expertise spans gemological research, laboratory services and education, is introducing the GIA Jade Report, featuring additional gemological information and a sleek, user-friendly layout to enhance the overall report experience for both industry professionals and consumers.

The Board of Governors of GIA has named Pritesh Patel, currently GIA’s Chief Operating Officer, as the Institute’s President and Chief Executive Officer

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.

（GIA は、2024年に、グラジュエート・ジュエラー・ディプロマ・プログラムをリニューアルして開始します。

（GIA は、2024年に、グラジュエート・ジュエラー・ディプロマ・プログラムをリニューアルして開始します。

As consumer and government demand increases for credible country-of-origin information for polished diamonds, GIA, whose mission is to protect consumers and ensure their trust in gems and jewelry, supports all workable solutions that will provide that vital information.

Scientists at the GIA laboratory in New York City recently discovered spinel treated by nickel diffusion in a parcel of gems acquired for research purposes by the GIA research team in Bangkok.

GIA will return to producing printed GIA Diamond Dossier reports beginning April 9.

CARLSBAD, Calif. – Jan. 21, 2021 – Register for GIA’s Knowledge Rocks Week: Spring Into Color for four days of exciting virtual events taking you deep into the beautiful world of colored stones.

CARLSBAD, Calif. – Oct. 13 – As consumer interest in laboratory-grown diamonds increases, GIA (Gemological Institute of America) is driving its consumer-protection mission forward by introducing LGDR by GIA, a family of four new digital-only reports for laboratory-grown diamonds with 4Cs color and clarity specifications replacing the descriptive terms and grade ranges previously used on GIA reports for laboratory-grown diamonds.

The start of 2023 marks a significant milestone in the digital transformation of the global diamond industry - the launch of the fully digital GIA Diamond Dossier, the most widely available diamond grading report in the world.

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