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GIA Names New Mineral Crowningshieldite
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The Gemological Institute of America (GIA) has discovered anew mineral while studying flaws in large diamonds from the Letšeng mine. The organization named the substance crowningshieldite afterG. Robert Crowningshield. The 50-year GIA...
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Research
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Oct 10, 2018
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Rapaport News
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GIA Reveals Why Diamonds Are Blue
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Blue diamonds may get their color from traces of boroncontained in the floors of ancient oceans, according to research by theGemological Institute of America (GIA). The research lab studied mineral inclusions in 46 blue diamondssubmitted to the GIA for...
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Technology
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Aug 02, 2018
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Rapaport News
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