Lightning Ridge Black Seam opal rough 4.00cts Bright Green dominant multifires to cut 13x13x5mm Lot B4-A191 Premium

Lightning Ridge Black Seam opal rough 4.00cts Bright Green dominant multifires to cut 13x13x5mm Lot B4-A191 PremiumLightning Ridge Black Seam Opal Rough 4. 00cts Lot: B4 A191Size: 13 x 13 x 5mmWeight: 4. 00 caratsOrigin: Lightning Ridge, Australia This black seam opal rough from Lightning Ridge features bright green dominant multi fires, making it an exciting piece for cutting. With its dark base intensifying the color play, this opal holds great potential for lapidaries looking to craft a striking gemstone. Natural & Untreated Bright Green Dominant Multi Fire

Lot Number: B4-A003

Some pieces are more promising than others

Who wants to cut this one

Moderate to high risk depending on the clarity of the colour bar and material

weighing 17

Point Hole Reaming Burr Set

Both pieces are well-shaped for low-waste cuts with a good face potential

so a true cutter's gamble

and green dominant

Lot Title: Interestingly Shaped Lightning Ridge Knobby Opal Rough – 7

Features:Orange colour zones showing with more to explore inside

Lot Title#Grade A–B Cutters – Semi-Black Seam Opal Stack with Bright Blue Bars (Lightning Ridge)