Polishing a 250 carat Ethiopian Opal

Rough opal cut of the year - I make a huge $45k profit

Cutting a Massive Gemstone Over 1000 Carats! How I Facet This Jumbo Quartz

Does this rough opal become the cut of the decade?

Data Analytics for Beginners | Data Analytics Training | Data Analytics Course | Intellipaat

Complete Guide to Opal Doublet Making

Grinding into this uncut rough opal the gems emerged

How to Cut a Cabochon Ethiopian Opal Gemstone

Rough opal can be risky business - The outcome is incredible

950 carat uncut gem rough opal - I'm going in!

Awesome Opals at the Tucson Gem Show 2023 w/ A&S OPAL, Spencer Opal Mines, Ethiopian Goodies

The dream OPAL comes true!

Ethiopian Opal Variety Is Wild! Black Opal, Chocolate Opal, Matrix Opal, Crystal Opal, White Opal.

INACREDITÁVEL PEDRA QUE TIREI DO BARRANCO PARA LAPIDAR

topaz/quartz unknown

How to cast jewelry with sand casting

How To Cut And Polish Ethiopian Opal? Gem Ethiopian Opal Carving And Polish.

The complete guide to Ethiopian Opals

High grade rough opal has huge potential to cut thousands $$$

Have I UNEARTHED a DIAMOND while sniping gold in NSW?

How to cut gemstones - Quartz