Re-shaping this gem opal raises the value by double the cost
21:13
Epic failure opal cutting. I lose my $8k investment
20:14
$6000 investment - The best cut ever - Rare Harlequin Black Opal
12:09
I cut this rough white opal into a dazzling gem
12:38
$20k gem black opal emerges from this uncut rough opal
16:29
Revealing Opal color with a huge increase of value
17:16
How to cut gemstones - Ruby Flame Fusion
16:51
$800 spent - Do I get my investment back
20:11