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A row of various shaped cut and polished pink diamonds.
Article
Why are Pink Diamonds Pink? GIA Researchers Dive Deep into their Crystal Structure

Russell Shor, October 18, 2019

GIA researchers analysed more than 90,000 natural pink diamonds to better understand how these rare and beautiful diamonds formed and got their colour.

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On the left is a 5.26 ct Fancy deep blue heart shape HPHT synthetic diamond. On the right is a 5.27 ct Fancy deep blue emerald cut HPHT synthetic diamonds.
Article
The Latest on Synthetic Diamonds

GIA, September 8, 2017

Dr James Shigley, GIA distinguished research fellow, is one of the foremost experts in diamonds and their identification. In this presentation recorded at the 2017 JCK Las Vegas show, he shares the latest developments about HPHT and CVD synthetic diamond

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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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