Rough Diamonds: Natural Crystal Shapes & Surface Features | GIA Knowledge Sessions Webinar Series
1:03:33
Emerald Sources: The Grass is Greener on the Other Side | GIA Knowledge Sessions Webinar Series
59:04
Diamond Exploration & Mining | GIA Knowledge Sessions Webinar Series
22:18
These Crystals can be Real Diamonds - See how to Identify
1:02:40
Prof. David Churchill on "Molecular Logic"
1:01:37
PHYSICS - High Pressure Research with Dr Lev Gasparov
49:36
The Diamond Story
13:46
Million Dollar Diamonds - Unboxing Natural Fancy Color & More!
7:52