Dr. Claudio Milisenda

Dr. Claudio C. Milisenda received his Ph.D. in earth science from the Max-Planck Institute for Chemistry and the University of Mainz in 1991. He joined the German Gemmological Association (DGemG) and the German Foundation for Gemstone in 1993. In 1996, he was nominated as director of the German Foundation for Gemstone Research, also referred to as the DSEF German Gem Lab. Dr. Milisenda is a member of the editorial board of the Journal of the German Gemmological Association and worked for more than a decade as an instructor of the DGemG Gemmology Diploma Courses. He is a delegate of Germany to the World Jewellery Confederation (CIBJO) and the International Gemmological Conference, as well as a member of the Laboratory Manual Harmonization Committee (LMHC). Dr. Milisenda has conducted on-site research in Europe, Southern Africa and Southeast Asia. He has authored and co-authored numerous articles on mineralogy, geology, geochemistry and gemmology in magazines and journals worldwide.

Spectroscopical Research on Gemstone Structure, Colour and Modification: a DGemG/DSEF Perspective


Already in the 1920s Georg O. Wild, the founder of the German Gemmological Association recognized the importance of spectroscopic examination of gemstones and his early works were concentrated on the origin and modification of colour in quartzes. Since then and along with the development of instrumentation and introduction of new techniques the spectroscopic analysis of gems including UVVIS/NIR, FTIR, TL, PL and Raman always formed a major research topic among the DGemG/DSEF research community.

Impressions from the first EGS 2007 in Idar-Oberstein

Register for the European Gemmological Symposium
on May 24 – 26, 2019 in Idar-Oberstein.

During the two days’ conference, you will enjoy numerous internationally recognized and distinguished speakers, as well as a broad spectrum of subjects including diamonds, coloured stone, pearls and jewellery.

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