Michael has been with SSEF since February 1998. Following his tenure as director of education, he became director of the SSEF laboratory in June 2009. He is involved in gemstone testing, education and management of the laboratory. Dr Krzemnicki holds a Master’s degree in Mineralogy and received his PhD in 1996 from Basel University (Switzerland). He received his FGA Diploma in January 1998. Since many years he has been lecturing in gemmology at the University of Basel, where he is a Privatdozent (PD). He is a fellow of the Gemmological Association of Great Britain and member of the scientific board of the Swiss Gemmological Society SGG. He is also on the executive committee of the International Gemmological Conference (IGC). He his assisted in his management duties by Victoria.
Pierre joined SSEF as a gemmologist in August 2005 and is head of gemstone testing at SSEF. He holds a Master’s in mineralogy from Liège University in Belgium, having completed his studies in 2003. In parallel, he followed courses at the “Société Belge de Gemmologie” in Brussels, and received the FEEG Diploma (Federation of European Education in Gemmology) in 2003. In 2005 he completed his studies on gemstone treatments with a DUG Diploma (Diplome Universitaire de Gemmologie à Nantes, France). From 2003 to 2005, he was lecture assistant at the University of Liège, Belgium.
Wei joined SSEF as a gemmologist in April 2011. She holds a Bachelor in gemmology from the China University of Geosciences (Beijing) and a Master in mineralogy from the same institution. She completed her PhD in 2011 at the Institute of Mineralogy and Geochemistry at the University of Freiburg in Germany. She completed her FGA Diploma in 2013.
Sebastian joined SSEF in April 2013. He has a Master in Geology from Graz University in Austria. He completed his FEEG gemmological diploma in Linz (Austria) and also has an FGA diploma. He works as a gemmologist for SSEF.
Alexander joined SSEF in 2011. He has a Bachelor in Geosciences from the University of Basel and a Master in Geosciences from the same university, and recently obtained his FGA diploma. He works for SSEF as a gemmologist.
Tashia joined SSEF in February 2014, and is currently working as a gemmologist. She completed her Bachelor of Science in Geological Sciences at the University of Manitoba (Winnipeg, Canada), followed by both her Master of Science (MSc) and PhD in Geological Sciences at the University of British Columbia (Vancouver, Canada). Her PhD research was on the origin of ruby and sapphire in marble from two different localities in Canada. During her PhD, she was also a lecturer at the University of British Columbia where she taught an introductory course called Gold and Gems. She completed her FGA diploma whilst at SSEF and today works as a gemmologist for SSEF.
Michael Rytz has been with SSEF since 2015 and is working as a gemmologist in training. He is currently completing his MSc thesis at the University of Basel on chrysoberyl from different deposits.
Laurent joined SSEF in 2010. He holds a Masters in Earth Sciences from Basel University and completed his FGA Diploma in 2008. He holds a PhD from Basel University that focused on pearl farming and pearl traceability issues, and is a lecturer for Gemmology at the University of Lausanne (UNIL). He is a founder of the Sustainable Pearls project. He is actively involved in the Swiss Gemmological Society (SGG) and the International Gemmological Conference (IGC). He is involved in different project management, research and teaching activities at the SSEF.
Jean-Pierre has been with SSEF since July 1994, and is currently director of the diamond department. He completed his Diploma of Gemmology at the University of Nantes in 1992. His main working fields in the laboratory are colourless and coloured diamonds, but he is also involved with the testing of coloured stones and pearls. Jean-Pierre is delegate of Switzerland at the World Jewellery Confederation (CIBJO) and is a member of the Laboratory Manual Harmonization Committee (LMHC).
Luc has been with SSEF since June 2006. He works on quality assessment of small diamonds and grading of large diamonds. He is our in-house photographer of gemstones and jewellery items.
Ly joined SSEF in 2013. He works on quality assessment of small diamonds and grading of large diamonds. He is also an ASDI instrument specialist.
Julien has been with SSEF since March 2008. He is a specialist in the quality control of small diamonds and grading of large diamonds. He is also involved in teaching of diamond courses at SSEF.
Judith joined SSEF as an analytical scientist in 2012. She previously worked as laboratory head at UMICORE and as a specialist for ICP and X-ray techniques. She now does pearl radiographies and micro X-ray computerised tomography for pearls at SSEF. She also operates instruments such as ED-XRF, UV-Vis, FTIR, Raman microspectrometry and GemTOF. She provides gemmologists the chemical and spectral results they require for the identification of gemstones. She is joined by Gina, Hannah and Ramon in the Analytical department.
Hao joined SSEF in autumn 2015 and is now working as a research scientist. He obtained his PhD at ETH Zurich in 2013 developing LA-ICP-MS methods. Currently, Hao is mainly responsible for GemTOF – a state-of-the-art LA-ICP-Time Of Flight-MS platform at SSEF, data management and statistics.
Alexandra is head of administration, joining SSEF in 2010. She has a degree in business administration and previously worked for several companies in the Basel region. She is responsible for accounting, client contacts and general administration. She works with Özlem, Tania and Véronique in the administration team.
Vito is responsible for the photo department at SSEF, ensuring that high-quality photos of items submitted to SSEF are taken. He is deeply involved in photo editing techniques and the production of SSEF reports and imagery for Premium Appendices. The photo department is complemented by Luc Phan and Julien Xaysongkham.
David is responsible for the production of reports at SSEF. This includes preparation of SSEF’s reports, quality control and activating validation features (such as Prooftag and MySSEF) of reports. He is assisted in his work by Thomas.
Piotr joined SSEF in 2010. He has a Master in Geosciences from the University of Basel. His research focus has been on LA-ICP-MS of sapphires from different origins. He is assisted in IT by Eli and Marc.
Judy has been working with SSEF since 2007. She studied international trade and management in Fukuoka (Japan) and NTNU (Taipei). She has extensively studied gemmology in Germany (FGG), GIA (G.G.) and the Gemmological Association of Great Britain (FGA). She is a widely published author on gemmological and jewellery-related topics. She is a contributing editor for Jewelery World Magazine. She has been working with SSEF in Far East Asia (Bangkok, Hong Kong, mainland China, Taipei) for a number of years and can be contacted for any matters related to on-site testing in Asia and shipping of goods to Switzerland.
Prof. Dr. Henry A. Hänni is a research associate with SSEF. He was director of SSEF from 1990-2009. He received his doctorate in Mineralogy from the University of Basel in 1980 and earned the title of professor in 1996 from the same university. He received his FGA Diploma in 1978. He has been regularly teaching gemmology courses at Basel and Lausanne universities for three decades. Prof. Hänni has published over 150 articles on gemstones and analytical techniques in numerous journals.
Walter obtained his M.Sc., in Earth Sciences from the Swiss Federal Institute of Technology (ETH) in Zurich with a major in Petrology-Mineralogy and Geophysics in May 2001. He completed his Graduate Gemologist studies at GIA Carlsbad the same year. In December 2011, he completed his PhD studies on the “Genesis and Trace Element Composition of Rubies from Marble-Hosted Deposits in Morogoro, Tanzania”, at Chulalongkorn University’s Department of Geology in Bangkok. From 2002 until 2005 he was a senior staff gemologist in the Gubelin Gem Laboratory in Luzern. Post Gubelin, Walter focused on lecturing at both Kasetsart University and at the Gem & Jewelry Institute of Thailand (GIT), the latter in his role as a research consultant. He has widely published and presented research in gemmological journals and at conferences worldwide.
Joana is a research associate with SSEF. She holds a Biology Masters from Lausanne University and a PhD from ETH Zurich where she researched soil microorganisms and plant-bacterial interactions. She is an expert in DNA fingerprinting techniques in a range of materials and organisms. She is lead scientist on an SSEF-ETHZ project on DNA fingerprinting of pearls to determine their origin.