SSEF News with a Focus on Antique Gems and Jewellery (2024)

Presentation by Dr. Michael S. Krzemnicki at the Swiss Gemmological Society SGG meeting in June 2024.

Want to learn more about rubies?

Start your journey to becoming an ruby expert with our free online course „Introduction to rubies“.

Learn all about rubies. Their fascinating history, how they form, where they come from. Learn about all the different origins of rubies and their treatments. Take this course as an introduction to the wonderful world of rubies.