Presentation at GemGenève 2019 by Dr. Michael S. Krzemnicki.
Presentation by Dr. Michael S. Krzemnicki and Jean-Pierre Chalain at the Pearl Symposium in Bahrain in November 2019.
Presentation by Dr. Michael S. Krzemnicki at IGC 2019 in Nantes, France.
Presentation at IGC 2019 in Nantes (France) by Dr. Hao Wang.
Presentation by Dr. Laurent E. Cartier at the International Gemmological Conference (IGC) in Nantes (France) in August 2019.
Presentation by Jean-Pierre Chalain at the International Gemmological Conference (IGC) in August 2019.
Presentation at ECMS 2019 in Prague (Czech Republic) by Dr. Tashia J. Dzikowski-Hutter.
Red Ruby or Pink Sapphire, that’s the Question. Where is the boundary between colour varieties of gems? Presentation by Dr. Michael S. Krzemnicki, SSEF at European Gemmological Symposium (EGS) 2019 in Idar-Oberstein.
Presentation by Dr. Michael S. Krzemnicki at GAHK conference in September in 2018, entitled ‘On the trail of new gem deposits: Exciting for the trade but challenging for gem labs’.
Presentation given by Alexander Klumb at 2018 Swiss Gemmological Society conference on an SSEF fieldtrip to the Paraiba region of Brazil.
News from the SSEF Lab. 2018 Swiss Gemmological Society conference. Presentation by Dr. Michael Krzemnicki
Presentation by Dr. Michael S. Krzemnicki at 2017 Swiss Gemmological Society conference in Zermatt. Talk entitled ‘From classic inclusions to neutrons: A ‘fresh’ look at modern gemmology’.
2017 presentation by Dr. Michael Krzemnicki at Jewellery Matters Symposium at Rijksmuseum in Amsterdam (Netherlands).
GAHK seminar March 2017 on SSEF criteria for Pigeon blood red & Royal blue by Dr. Michael Krzemnicki (SSEF)
News from the SSEF Lab. 2015 Swiss Gemmological Society conference. Presentation by Dr. Michael Krzemnicki
Presentation by Jean-Pierre Chalain at 2015 Swiss Gemmological Society conference on HPHT treatment detection at SSEF
News from the SSEF Lab. 2014 Swiss Gemmological Society conference. Presentation by Dr. Michael Krzemnicki
Inhorgenta Pearl Forum talk by Dr. Michael S. Krzemnicki in February 2014.
Presentation on origin determination of coloured gemstones by Dr. Michael Krzemnicki at 2014 Scottish Gemmological Conference.
Talk by Jean-Pierre Chalain at 2014 Swiss Gemmological Society conference on the ASDI instrument developed by SSEF to detect colourless synthetic diamonds in melee batches.
A Western look on Fei Cui and Jadeite nomenclature. Talk given by Dr. Michael Krzemnicki in Hong Kong at Gemmological Association of Hong Kong event in March 2013.
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.
News from the SSEF Lab. 2013 Swiss Gemmological Society conference. Presentation by Dr. Michael Krzemnicki
Presentation by Dr. Michael Krzemnicki on Radiocarbon dating of pearls at 21st International Radiocarbon Conference in Paris, 9-13 July 2012.
2012 Christie’s expert lecture by Dr. Michael Krzemnicki on jade, jadeite jade and Fei Cui.
2012 Christie’s expert lecture by Dr. Michael Krzemnicki on exceptional coloured gemstones and natural pearls.
Presentation entitled “Kashmir sapphires: Potential and limitations of origin determination by chemical fingerprinting with LA ICP mass spectrometry”. GAHK seminar in June 2012.
News from the SSEF Lab. 2012 Swiss Gemmological Society conference. Presentation by Dr. Michael Krzemnicki
Presentation by Dr. Michael Krzemnicki at 2012 SGG conference in Switzerland.
Presentation on the fascinating diversity and range of colours found in corundum, going far beyond the blue of sapphire and red of ruby.
News from the SSEF Lab. 2011 Swiss Gemmological Society conference. Presentation by Dr. Michael Krzemnicki
Presented talk at International Gemmological Conference (IGC) in Interlaken (Switzerland) by Dr. Michael Krzemnicki of SSEF.
Latest research on detection of low temperature treatment of pink sapphires. Presentation by Dr. Michael Krzemnicki of SSEF.
Presentation on x-ray computed tomography during LMHC meeting in Bahrain in 2010.
News from the SSEF Lab. 2010 Swiss Gemmological Society conference. Presentation by Dr. Michael Krzemnicki
Talk on ruby treatments and terminology during CIBJO Ruby Day in Munich in February 2010.
Talk given by Dr. Michael Krzemnicki in Hong Kong in 2010 about spinel, a gemstone increasingly in vogue. History, sources, origin determations, synthetics and treatments.
Christie’s Hong Kong Spring Auction lecture by Dr. Michael Krzemnicki. “Gemstones and the fascination of colour”
2010 Swiss Gemmological Conference presentation by Jean-Pierre Chalain on diamond grading and testing practices at the Swiss Gemmological Institute (SSEF).
Presentation at Swiss Gemmological Society about trip to spinel and corundum deposits in Tanzania in October 2009 by Dr. Walter Balmer and Dr. Michael Krzemnicki
Talk given on radiocarbon dating of pearls at International Gemmological Conference (IGC) in Arusha (Tanzania) in 2009 by Dr. Michael Krzemnicki.
Talk given on X-ray microtomography at International Gemmological Conference (IGC) in Arusha (Tanzania) in 2009 by Dr. Michael Krzemnicki.
Presentation at 2009 European Gemmological Symposium (Bern, Switzerland) by Jean-Pierre Chalain on the platelet peak of HPHT-treated diamonds of type Ia.
2009 European Gemmological Symposium presentation (by Dr. Michael Krzemnicki) about different applications of Laser Ablation Inductively Coupled Mass Spectrometry in gemmology.