Glowing rough opal has the potential to cut a top gem
17:51
Miner parts with a 20yr old piece of rough opal treasure - I cut it!
20:11
The Rock drops by to give some lessons about patience in opal cutting
12:38
$20k gem black opal emerges from this uncut rough opal
20:23
I Finally Facet These Montana Sapphires 1 Year After Finding Them
21:03
Grinding into this uncut rough opal the gems emerged
20:14
$6000 investment - The best cut ever - Rare Harlequin Black Opal
30:32
MOST EXPENSIVE Gemstones Ever Discovered
23:11