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
1:01:42
Identifying Mineral Inclusions in Diamonds | GIA Knowledge Sessions Webinar Series
1:03:52
Laboratory-Grown Diamonds: Updates and Identification | GIA Knowledge Sessions Webinar Series
18:37
Found a diamond? Identify, Test, and Verify Real Diamonds - Tips and tricks for testing
1:05:05
Playing the Blues: An Overview of Sapphire Treatment | GIA Knowledge Sessions Webinar Series
1:07:41
A Look at Kimberlites: The Volcanoes that Carry Diamonds | GIA Knowledge Sessions Webinar Series
22:18
These Crystals can be Real Diamonds - See how to Identify
1:26:52