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A type IaB diamond showing a “tatami” strain pattern

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A type IaB diamond showing a “tatami” strain pattern. Published in Gems & Gemology, 2003.

Author(s): J.-P. Chalain

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A natural yellow diamond with nickel-related optical centers

A natural yellow diamond with nickel-related optical centers. Published in Gems & Gemology, 2003.

Author(s): J.-P. Chalain

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Zuchtperlen vom Golf von Kalifornien, Mexiko

Zuchtperlen vom Golf von Kalifornien, Mexiko. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 2002.

Author(s): L. Kiefert

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