Learn how the structure, inclusions and properties of some gemstones interact with light to create unusual visual effects.
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Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.
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Don’t judge a yellow gem by its colour alone. A variety of gemstones also come in shades of yellow, from diamonds to citrine to garnets.
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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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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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GIA researchers analysed more than 90,000 natural pink diamonds to better understand how these rare and beautiful diamonds formed and got their colour.
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Circumnavigate the boreal reaches of the globe to explore gems from polar regions.
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GIA researcher analyses and confirms that De Beers’ Lightbox diamonds are grown using the chemical vapour deposition process.
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Summarises data collected on more than 15,000 natural blue/grey/violet diamonds examined by GIA during the last decade and examines the mechanisms that produce this colour range.
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Explores an exceptional family of diamonds, referred to as “CLIPPIR” (Cullinan-like, Large, Inclusion-Poor, Pure, Irregular and Resorbed), that formed in a super-deep environment.
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