In this study, the Bangkok laboratory examined five low-quality bead cultured pearls sourced directly from a local pearl factory and characterised their features before and after processing.
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Recently, GIA’s laboratory in New York had the opportunity to examine a fascinating pearl find and hear about an even more fascinating story.
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“The A-Z of Pearls”, with at least one pearl-related subject for each letter of the alphabet, was presented in Thailand recently.
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GIA’s postdoctoral programme gives researchers access to gemmological data, equipment, and rare, unusual and large gems in its laboratories.
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Their jewellery has won multiple design awards – and the attention of Katy Perry, Miranda Lambert, Gabrielle Union, Kristen Stewart and Kylie Jenner, to name a few.
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A rare look at natural pearls from a known Spondylus species, commonly called “thorny” oysters.
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Examines the internal structure, chemical composition and spectroscopic features of 22 pen pearls.
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This giant clam pearl was noteworthy for its size and interesting colouration, and its pronounced banding when viewed with transmitted light.
Read MoreOverview and commentary on the 2013 Russian Diamonds and Jewellery article “New Reality of the Russian Jewellery Market”.
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