Find out about how GIA is addressing industry concerns over undisclosed laboratory-grown and simulated fancy melee being mixed in with natural fancy melee.
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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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GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems have entered the market.
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More than 200 historically significant books housed in the GIA Library have been digitised and made available for free.
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Chow Tai Fook and GIA offer secure digital blockchain reports that document the diamond journey and grading information in one place.
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Revival jewellery is inspired by the past – and wearing it connects us to the rich history of the beginning of civilisation.
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A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
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GIA researcher analyses and confirms that De Beers’ Lightbox diamonds are grown using the chemical vapour deposition process.
Read MoreCompares the image quality provided by real-time microradiographic imaging (RTX) units fitted with two different detectors: an image intensifier (II) and a flat panel detector (FPD).
Read MoreCompares PL spectroscopy data of 48 emerald samples from three countries to evaluate the usefulness of the technique in geographic origin determination.
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