GIA researchers in New York recently had the opportunity to examine one of the most interesting and unique diamond crystals ever found.
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Find out more about what causes a diamond to chip, and 8 tips on how you can avoid chipping your diamond.
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This study uses both historical information and modern data to create a computer model of the Tavernier Blue, orienting the finished diamond within the original diamond crystal.
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Mineral inclusions trapped in diamonds reveal the continents’ construction – and help GIA researchers date diamonds.
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Learn about the differences – and similarities – between natural and laboratory-grown diamonds, and how GIA’s researchers and grading laboratories can tell the difference
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This stone was a good example of a very rare natural diamond exhibiting synthetic growth characteristics.
Read MoreBoth crystal morphology and size can greatly affect the properties observed in a synthetic diamond.
Read MoreTwo historic blue diamonds, the Hope and the Wittelsbach-Graff, appeared together for the first time at the Smithsonian Institution in 2010.
Read MoreIn the early 1980s four diamonds were recovered from the stream gravels of Hayfork Creek in Trinity County, California; all four are of industrial grade and all have an interesting feature in common.
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GIA scientists recently presented their latest research on diamond tagging and the cause of grey-blue-violet colour in diamonds.
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