Mallorca GemQuest
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    Menahem Sevdermish

    Menahem is an internationally recognized authority on gem commercialization and the processing of gemstones. He founded the first Gemological Institute of Israel – GIPS (today EGC, the European Gemological Center and College) in 1974.

    He is the author of 'The Dealer’s Book of Gems and Diamonds' - a two-volume reference work, which concentrates on the commercial aspects of gems.

    The culmination of eleven years of Dr. Sevdermish’s research into the future of gem communication and grading resulted in the development of the 'Gemewizard', a unique color communication, grading and appraising system for gems and diamonds.