Collectors from around the world descended on Christie's Maharajas & Mughal Magnificence auction of the jewels from the Al-Thani Collection on 19 June.
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Examines the sources, colour, texture and chemical composition of jadeite from Japanese deposits.
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Review of S.K. Samuels’s Imperial Jade of Burma and Mutton-Fat Jade of India: Mining, Trade, and Use from Antiquity to the Present.
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Introduces the Chinese nephrite mine in Hechi and characterises the “band” and dendritic patterns found in this material.
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A jadeite jade bangle is submitted for lab testing to investigate the possibility of treatment.
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A brief look at GIA's permanent museum exhibit at the New York lab and campus.
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Rare shattuckite from the Democratic Republic of Congo, as seen at the Tucson Gem and Mineral Show.
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An insider look at the May 2014 show, held at the Shanghai Word Expo Exhibition & Convention Center.
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A specimen presenting as red coral is revealed to be dyed bone.
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A stone submitted for identification is revealed to be the first wurtzite examined by the GIA lab.
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