PIEDRA PRECIOSA DE ÓPALO DE LIGHTNING RIDGE, AUSTRALIA blackopaldirect.com
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12:06
I've cut so many of these but none cut like this uncut gem!
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20:32
Could this rough opal be the cut of the year? I'm going in
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20:23
I Finally Facet These Montana Sapphires 1 Year After Finding Them
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8:10
The Bushmen Find Spectrum Opals Worth $100,000! | Outback Opal Hunters
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25:34
Biggest Show on Earth - Tucson Gem Show
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19:59
How to cut and polish a stone. Awesome results!
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9:18
Australian opal gemstone - Cost me $5000 - Do I make a profit?
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18:11