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Build confidence in gemmology

For A Rewarding Jewellery Career

Knowledge of Gemmology and the latest trade practices is essential for every aspiring gem enthusiast, dealer, and collector. Not only can you make better-informed decisions but also avoid overpaying when purchasing various gemstones. Learn in-depth about the classification of gemstones, factors affecting the value of the coloured gems, natural versus synthetic gemstones, saltwater versus freshwater cultured pearls, important phenomenal gems, jade and jade imitations... all within 2-4 weeks.

Gif displaying JDMIS' gemmology syllabus overview

Expert Instructor

Tanja Sadow

Tanja is an award-winning jewellery designer and gemmologist with more than 4 decades of experience educating the jewellery industry across 4 continents. As Dean and founder of JDMIS, Tanja trains teams from top jewellery brands and works with aspiring artisans to help them achieve brilliance in their careers.

Preview Video

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