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GIA is adding a report comment employing the trade color term “Peacock” for designated colors of cultured pearls from the Pinctada margaritifera black-lipped pearl oyster, commonly known as Tahitian pearls.

The Gemological Institute of America (GIA), the leading gemological grading and identification organization, is now offering a lower-cost GIA Laboratory-Grown Diamond Report - Dossier.

（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.

The story of the life and stellar jewelry career of William Ruser is brought to life in a newly published book

The GIA laboratory in Ramat Gan, Israel, will end operations by the end of 2024 due to changes in the global diamond industry that resulted in significant declines in submissions from local clients over the last several years.

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