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DSEF Gemstone report
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DSEF German Gem Lab

German Gemmological Institute:


German Gemmological Association DGemG – DSEF German Gem Lab


Europe’s leading institute for education and research in gemmology since 1932,


Practice- and branch-related seminars and educational programmes in coloured stones, diamond grading and pearls/organic substances, Gemstone research, Gemstone and jewellery reports.

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