Uncut gem black opal delivers a surprising result!
19:58
Large Rough Opal cuts 3 gems worth over $20k
21:03
Grinding into this uncut rough opal the gems emerged
27:28
Black Opal cutting Look at the size Direct from the Mining of Australian Opals to the wheels!
1:39:14
Tucson Gem & Mineral Show 2023 Main Event! w/ Black Opal Direct, Agates, Minerals, & Crystals part1
16:29
Revealing Opal color with a huge increase of value
15:48
#1 Faceting of a 48 carat Shaver Lake Amethyst
20:22
3 bars of opal color. Which one do I cut?
21:41