Gem cutting Ep.2 - Amethyst
9:03
Gem cutting Ep.3 - Oro Verde
20:07
Cutting a Massive Gemstone Over 1000 Carats! How I Facet This Jumbo Quartz
21:02
Cutting gemstones: cushion cut in amethyst.
4:35
São essas ágatas? Corte na serra lapidária para verificar a identidade
12:17
Gem Cutting Tutorial: Emerald Shaped Amethyst
7:39
Ruby | King of Precious Stones | Gemstone Cutting, Faceting and Polishing | Cut 19.85 & 15.45 carats
32:54
How To Cut a Round Brilliant Gemstone Using a Faceting Diagram, For Beginners
10:02