A 0.64-carat fancy diamond was found to have a synthetic coating The Gemological Institute of America (GIA) has announced that in its recent examination of a 0.64-carat fancy greyish-greenish-blue cushion modified brilliant-cut diamond, it found a chemical vapour deposition (CVD) layer grown on top of it. The composite was found to be “consisting of a […]

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GIA scientist Dr. Karen Smit is the lead author of Science magazine article Diamonds, long prized for their beauty and rarity, continue to reveal clues about the early history of our planet. To better understand how the most ancient continents came to be, researchers examined tiny mineral remnants trapped in diamonds during the formation of […]

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GIA (The Gemological Institute of America) announced it will introduce the GIA Diamond Origin Report service which will confirm the country of origin of polished diamonds. To be eligible for this new service, the original rough diamonds and resulting polished diamonds must be submitted to GIA for analysis so that they can be matched to […]

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