20:14
$6000 investment - The best cut ever - Rare Harlequin Black Opal
20:07
Cutting a Massive Gemstone Over 1000 Carats! How I Facet This Jumbo Quartz
19:54
Diamonds in Meteorites ☄️ Carbonado Diamonds & Lonsdaleite Diamond (learn the truth) Scott McGregor
6:29
What is a Treated Black Diamond?
16:55
Jade vs. Simulants - Can You Spot the Difference?
28:08
Comment trouver des diamants dans les rivières ou les roches volcaniques près de chez vous
13:45
All About Fire Obsidian & More Amazing Natural Glass!
19:09