Gem-A Live: Man-made Stones Explained
1:03:46
Gem-A Live: Laser Drilled Diamonds
1:01:37
Gem-A Live: Titanium Diffusion in Sapphire
14:11
How a CVD Diamond is Made
1:11:32
Gem-A Live: Understanding Gemstone Species and Varieties
46:48
Three Precious Gems: Rubies, Emeralds, Sapphires
51:31
Gem-A Live: Introduction to Diamonds
16:56
How To Make Ruby in a Microwave
16:00