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ダイヤモンドの起源レポートについて学ぶ. 詳しく見る. GIAは、研究、教育、ラボサービスを通して宝石とジュエリーを購入する一般を保護する目的で1931年に設立された独立非営利組織です。.
From gemology to jewelry manufacturing arts to bench jewelry, the courses we offer give students practical, in-depth, on-the-job skills and knowledge. The building blocks of our online campus programs, eLearning courses allow students to learn at their own pace and convenience. Lab classes help students gain hands-on experience using ...
Color Modification of Spinel by Nickel Diffusion: A New TreatmentMichael Jollands, Abadie Ludlam, Aaron C. Palke, Wim Vertriest, Shiyun Jin, Pamela Cevallos, Sarah Arden, Elina Myagkaya, Ulrika D’Haenens-Johannson, Vararut Weeramongkhonlert, and Ziyin Sun.
Gem Encyclopedia is a virtual journey through the science and lore of Gemstones from across the globe. Each Gem page features Gemological Information, a Buyer’s guide, photos, videos & research.
GIA Education. Elevate your career in gems and jewelry by combining passion with knowledge. Study at the Gemological Institute of America, the world’s foremost authority in gemology, and earn a diploma that opens doors throughout the industry.
GIA’s New York campus is a state-of-the-art facility in the International Gem Tower – right in the heart of the famed Diamond District. The campus is feet away from thousands of businesses devoted to jewelry. New York is also the gateway to the world’s largest consumer diamond market, and the vast majority of diamonds entering the United ...
