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Multi-colored gems are superimposed on an image of glacier peaks.
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Gems and Minerals from the Sub-Arctic

Sharon Bohannon, March 17, 2017

Circumnavigate the boreal reaches of the globe to explore gems from polar regions.

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A close-up image of a pile of rough diamonds.
Article
Ups and Downs of 2016 Make for an Uncertain 2017

Russell Shor, January 20, 2017

The diamond industry was slow to recover in 2016 and coloured gems got a welcome shot in the arm. Mixed signals leave no clear indicators for 2017.

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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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