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IGI Expertise and Technology Meeting the Requirements of Today. While two gems may look identical to the untrained eye, they may be quite different in quality
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The Gemological Institute of America (GIA) Laboratory is the world’s most trusted name in diamond grading and gemstone identification.
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The American Gem SocieWty (AGS) is a trade
association of professional gemologists founded
in 1934 by Robert M. Shipley. |
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The Internationally recognized Institute European Gemological Laboratory (EGL) was founded in Belgium more than 30 years ago. |
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Founded in 1977, and located in the heart of New York’s gem and jewelry district, American Gemological Laboratories (AGL) is an international gemstone testing facility specializing in comprehensive colored gemstone analysis. . |
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GAAJ-ZENHOKYO issues thousands of standard gemological reports each month both for diamonds and colored gemstones. The types of analysis performed include the determination of natural and synthetic gem colored stones |
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Established in 1931, the nonprofit Gemological Institute of America (GIA) is one of the world's foremost authorities in gemology. |
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The Swiss Gemmological Institute, part of the Swiss Foundation for the Research of Gemstones (SSEF: Schweizerische Stiftung fur Edelstein-Forschung) was founded by trade organizations. |
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The Asian Institute of Gemological Sciences was founded in 1978 as South East Asia’s first educational facility devoted exclusively to the study of gemology |
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Dr. Eduard J. Gubelin, one of the forefathers
of modern gemology, and who were a Founding Organizing
Member as well as an Honorary Member of the International
Colored Gemstone Association (ICA),
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