Understanding the Origin of Natural Diamonds | GIA Knowledge Sessions Webinar Series
53:11
Unusual Phenomenal Colored Stones | GIA Knowledge Sessions Webinar Series
59:04
Diamond Exploration & Mining | GIA Knowledge Sessions Webinar Series
1:04:54
Furnaces, Fluxes and Filling: A Review of Ruby Treatment | GIA Knowledge Sessions Webinar Series
1:05:12
Rough Diamonds: Natural Crystal Shapes & Surface Features | GIA Knowledge Sessions Webinar Series
22:18
These Crystals can be Real Diamonds - See how to Identify
9:13
Can Diamonds Made In A Lab Replace Natural Ones? | Rise And Fall
2:46:55
Does Consciousness Extend Beyond Brains? The 2023 Holberg Debate, feat. Seth, Luhrmann, Sheldrake.
13:06