Research Library

Synthetic Verneuil corundum with unusual color zoning

Synthetic Verneuil corundum with unusual color zoning. Published in Gems & Gemology, 2004.

Author(s): L. Kiefert

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To what an extent a jeweller can detect treated diamonds

To what an extent a jeweller can detect treated diamonds. Published in Le Diamant, rêve et réalité, 2004.

Author(s): H.A. Haenni

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