
Led by the award-winning gemmologist and jewellery expert, Tanja Sadow, immerse yourself in an exclusive gemmology experience to discover the spellbinding universe of colours, shapes, and rarities that make each gemstone a unique treasure. Discover the secrets to appreciating the jewellery you already possess and empower yourself to make informed and inspired purchase decisions for your future adornments.
Tanja is an award-winning jewellery designer & gemmologist with more than 4 decades of experience educating the jewellery industry across 4 continents. Dean and founder of JDMIS, Tanja works with aspiring artisans as well as top jewellery brand team members to help them achieve brilliance in their careers.
(JDMIS is) an awesome place to learn gems and metals!
Sherl G.
I love the way Tanja teach! The class were never bored as she fills the lessons with examples and stories related to the topic of the lessons.
Louis L.