Irradiated Green-Blue CVD Synthetic Diamonds (英語)

Advancing CVD growth technologies yield intensely colored, high-quality synthetic diamonds, such as the two green-blue synthetic materials seen in the New York lab.

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Assembled Cultured Blister Pearl with an Unusual Component

An assembled mabe pearl contains a fluted object, the function of which is unknown.

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Unusual Graining Structure in Pink Diamond

A Very Light pink diamond showing a uniform plane of color intersecting with a cone of strain that fit perfectly into a colorless hole is studied at the Carlsbad lab.

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Three Unique Large Natural Pearls from Haliotis (Abalone) Species

Abalone pearls submitted to the New York lab provide insight into the range of colors and shapes this type of mollusk can produce.

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