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Learn The 4Cs Industry Resources Gemological Institute of America
| Gemological Institute of America |
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Established in 1931, GIA is the world’s largest and most respected nonprofit institute of gemological research and learning. Conceived 75 years ago in the august tradition of Europe’s most venerated institutes, GIA discovers (through GIA Research), imparts (through GIA Education), and applies (through the GIA Gem Laboratory and GIA Gem Instruments) gemological knowledge to ensure the public trust in gems and jewelry. With 1,100 employees, the Institute’s scientists, diamond graders, and educators are regarded, collectively, as the world's foremost authority in gemology. |
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Industry Memberships
Member of the British
Jewellery Association
Daniel Rosen is a
Member of The London
Diamond Bourse & Club
Member of World
Federation of
Diamond Bourses
(click image below
to confirm)
Registered Jeweler at
StopBloodDiamonds.org
(click image below
to confirm)
SafeBuy Accredited
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Customer Testimonials
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Dear Daniel,
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