Gem-A Live: Laser Drilled Diamonds
1:03:38
Gem-A Live: 150 Years of Diamond Mining in Kimberley
1:04:25
Gem-A Live: Beryllium Diffusion in Sapphire
6:34
Talking Clarity Enhanced Diamonds - Fracture Filled and Laser Drilled
51:31
Gem-A Live: Introduction to Diamonds
57:24
Diamond Color Treatment and Its Identification | GIA Knowledge Sessions Webinar Series
58:08
Gem-A Live: In Discussion with Editor of The Journal of Gemmology, Volume 37, No. 5
53:17
Gem-A Live: Flux-healed Ruby
52:38