Colour modification is observed in a reddish orange zircon at the Bangkok laboratory.
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A Fancy yellow type Ib CVD-grown synthetic diamond undergoes testing at the New York lab.
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A stone submitted for identification is revealed to be the first wurtzite examined by the GIA lab.
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A rare chameleon diamond is examined in GIA's Carlsbad lab.
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An unusual synthetic ruby, combining a hydrothermal ruby seed and flux ruby overgrowth, is examined at the Carlsbad lab.
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This section, from the Spring 1991 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
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A look at the "Father of Modern Gemmology", GIA's Richard T. Liddicoat
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This article highlights the life of GIA's founder, Robert M. Shipley Sr.
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A gemmologist, educator, and self-described dreamer who established the Institute’s research department and founded the world-renowned International Gemmological Symposium.
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World-renowned gem identification expert who guided GIA's lab services to the forefront of gemmological research.
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