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Dalmatian stone samples
True Colours of “Dalmatian Jasper”

Tomasz Powolny and Magdalena Dumańska-Słowik, November 8, 2017

Discusses the mineralogical composition and provenance of this spotted decorative gemstone.

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Evan Smith studies images of diamond inclusions on a computer.
Article
Postdoctoral Programme Gives Scientists Access to Rare Research Opportunities

Amanda J. Luke, November 16, 2016

GIA’s postdoctoral programme gives researchers access to gemmological data, equipment, and rare, unusual and large gems in its laboratories.

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The internal structures of natural pearls from the marine mollusk Pinctada maxima are the subject of the lead article in this issue. The scattered loose pearls on the cover are from Paspaley’s natural pearl collection, which includes one discovered in the 1970s at the Eighty Mile Beach fishing grounds
G&G Spring 2021 Edition
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