Research Library

Observations on treated ruby and sapphire

Observations on treated ruby and sapphire. Published in Taiwan Jewellery World Magazine, 2006.

Author(s): H.A. Haenni

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News about treated brown cultured pearls

News about treated brown cultured pearls. Published in GAHK Journal, 2006.

Author(s): H.A. Haenni

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Jewelry repair damages a diamond

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Jewelry repair damages a diamond. Published in Gems & Gemology, 2006.

Author(s): H.A. Haenni

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Study shows chocolate pearls are ‘stained’

Study shows chocolate pearls are ‘stained’. Published in Jewellery News Asia, 2006.

Author(s): H.A. Haenni

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A short review of the use of ‘keshi’ as a term to describe pearls

A short review of the use of ‘keshi’ as a term to describe pearls. Published in Journal of Gemmology, 2006.

Author(s): H.A. Haenni

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Gemmologie: Le diamant et sa reglémentation

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Gemmologie: Le diamant et sa reglémentation. Published in Bulletin SSC, 2006.

Author(s): J.-P. Chalain

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