Gem-A Live: Fluorescence
1:11:32
Gem-A Live: Understanding Gemstone Species and Varieties
1:12:00
Gem-A Live: Man-made Stones Explained
1:04:25
Gem-A Live: Beryllium Diffusion in Sapphire
52:40
Glowing Diamonds | GIA Knowledge Sessions Webinar Series
1:03:46
Gem-A Live: Laser Drilled Diamonds
59:58
An Overview of Pearl Identification Techniques | GIA Knowledge Sessions Webinar Series
10:47
Cutting a First Gem on the CutKit™1 Faceting Setup with a Vevor Machine
13:10