Tag : Treatments

How to get the blues of the pink: detection of low temperature treatment of pink sapphires

Latest research on detection of low temperature treatment of pink sapphires. Presentation by Dr. Michael Krzemnicki of SSEF.

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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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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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Breakthrough in orange – the potential of GemLIBS in gem testing

Breakthrough in orange – the potential of GemLIBS in gem testing. Published in Jewellery News Asia, 2005.

Author(s): H.A. Haenni

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