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 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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More than 200 historically significant books housed in the GIA Library have been digitised and made available for free.
Read MoreJaipur, India, is a leading emerald cutting and trading centre for the global gem and jewellery industry. See inside the industry with a GIA field team, and learn the intricacies of a business seldom seen by the public or most members of the industry.
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A technique for origin identification based on statistical analysis and LA-ICP-MS spectrometry.
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G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.
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By Bernhard Dischler, 467 pp., publ. by Springer-Verlag Berlin and Heidelberg GmbH & Co., Berlin; New York, 2012, US $120
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The third in the series, "Sapphire: A Crystal With Many Facets," this article looks at various emerging applications for synthetic sapphire.
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