Uncut gem black opal delivers a surprising result!
20:14
Custo $ 6.000 Pode ser o melhor corte de todos os tempos - Opala preta arlequim
16:46
300 carat massive uncut gem polished in reverse
37:22
The Most STUNNING And GLAMOROUS Opal Ever Discovered! | Outback Opal Hunters
20:20
Rough opal with thick gem red color bar. I expose it & I love it!
20:59
Homemade Faceting machine, Asian sapphire
1:39:14
Tucson Gem & Mineral Show 2023 Main Event! w/ Black Opal Direct, Agates, Minerals, & Crystals part1
19:58
Large Rough Opal cuts 3 gems worth over $20k
24:17