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G-G Spring 2015
Spring 2015 G&G Examines Blue Spinel, Chinese Jewellery Design and the Latest in Synthetics

G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.

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Fancy black NPD synthetic diamond
Fancy Black NPD Synthetic Diamond

Testing reveals the first synthetic nano-polycrystalline diamond (NPD) to be detected by a gem lab.

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Baroque pearl with suspect ring
Assembled “Pearl” Filled with Wire

Microradiography reveals wire fillings within a “pearl” created from two separate specimens.

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