Black Opal BREAKTHROUGH! Lightning Ridge's Finest Gem!
15:22
Uncut gem black opal delivers a surprising result!
10:34
Subtle Flaw - Big Problem in this Australian Opal!
11:28
Matrix Opal - How Black Does it Need To Be to be Beautiful ?
4:13
Pea Nobbies, Point Stones & Opal Chips - OPALWORDS @ Lightning Ridge
12:09
I cut this rough white opal into a dazzling gem
14:51
BIG BAD OPAL -- 2.2 lbs!
22:48
Australian Opals Different types explained
14:36