Large Rough Opal cuts 3 gems worth over $20k
28:05
PIERRE PRÉCIEUSE OPALE DE LIGHTNING RIDGE AUSTRALIE blackopaldirect.com
20:18
Uncut gem screams TOP BLACK OPAL I expose and polish
23:56
Opal miner needed my help cutting a gem worth $150,000 (raw and unfiltered)
19:32
Uncut Crystal Gem Opal — or so I thought!
20:22
3 bars of opal color. Which one do I cut?
23:53
Faceting gemstones: cutting a huge gem 2
13:51
Growing Gemstones Growing a real opal at home and we cut it!
27:39