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JDMIS Gem Basics

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How much do you know about your gems and Jewellery?

Join Tanja Sadow for a fascinating introduction to gemstone classification and value!
This short, high-quality e-learning programme is provided to enthusiasts, industry members and collectors as part of Tanja and JDMIS’ effort to build awareness and understanding of the unusual and scintillating world of gems and jewellery… Please enjoy!

What you will learn

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The 4Cs of gems

Learn how the 4Cs: colour, cut, clarity and carat weight affect the values of different gems in the market.

Picture of measuring raw cut diamond

Facts about diamonds

Colourless diamonds are perhaps the most popular gemstone – learn how the 4Cs apply specifically to this unique gem.

Coloured Gemstones

Appreciating Coloured Gems

Learn how coloured gems are classified and how to best appreciate their rare properties.

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Tanja Manuela Sadow from JDMIS

Instructor Profile

Tanja is an award winning jewellery designer with more than 3 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.

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