Tag : Treatment

Corundum treatment

Presentation on developments in treatments of ruby, sapphire and corundum. Focus on characteristics, detection and declaration. Talk given at 2013 Swiss Gemmological Society conference by Dr. Michael Krzemnicki.

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Analysis of rubies with corroded surfaces

Analysis of rubies with corroded surfaces. Journal of Gemmological Association of Hong Kong (2011)

Author(s): M.S. Krzemnicki

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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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