New Sapphires from Ambatondrazaka, Madagascar. Published in Journal of Gemmology, 2017, 35, 5, 391-392.
Author(s): M.S. Krzemnicki
Le talisman de Charlemagne: nouvelles découvertes historiques et gemmologiques. Published in AFG Revue Française de Gemmologie, 2017, 199, 18-25.
Author(s): G. Panczer, G. Riondet, L. Forest, M.S. Krzemnicki, F. Faure
GAHK seminar March 2017 on Pigeon blood red & Royal blue by Dr. Michael Krzemnicki (SSEF)
Some uncommon sapphire “imitations”: Blue Co-zirconia, kyanite and blue dumortierite. Published in Journal of the Gemmological Association of Hong Kong GAHK, 34, 62-64
Author(s): M.S. Krzemnicki
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.
Kashmir Sapphire. Facette (2013)
Author(s) :M.S. Krzemnicki
Presentation entitled “Kashmir sapphires: Potential and limitations of origin determination by chemical fingerprinting with LA ICP mass spectrometry”. GAHK seminar in June 2012 by Dr. Michael S. Krzemnicki.
2012 Christie’s expert lecture by Dr. Michael Krzemnicki on exceptional coloured gemstones and natural pearls.
Presentation on the fascinating diversity and range of colours found in corundum, going far beyond the blue of sapphire and red of ruby.
Author(s): M.S. Krzemnicki
Saphirs de couleur fantaisie; diversité multicolore d’une gemme classique
Author(s): M.S. Krzemnicki