Gorgeous Bright Blues/Greens on this Winton boulder Matrix opal rough 19.40cts Cut & polish a nice Gem from this 19x13x8mm Lot B4-A639 Premium ⚠️ Gamble Grade B (Gamble)Blues

⚠️ Gamble Grade B (Gamble)Blues clearly visible – moderate risk

High potential for crafting unique gemstones

00ct split seam opal pair from Coober Pedy shows light green and blue fire across a grey base

Lightning Ridge Knobby Opal Split Rough Half – 14

com and grab this large Lightning Ridge rough lot

Gorgeous Bright Blues/Greens on this Winton boulder Matrix opal rough 19.40cts Cut & polish a nice Gem from this 19x13x8mm Lot B4-A639 Premium ⚠️ Gamble Grade B (Gamble)BluesLot Title: Winton Boulder Matrix Opal Rough 19. 40cts Bright Blue Green Fires Cutters RoughLot Number: B4 A639Details: 19x13x8 mm Winton Boulder Matrix Opal Cutters RoughDescription: Gorgeous boulder matrix opal rough from Winton, weighing 19. 40cts, showing bright blues and greens across the natural ironstone matrix. This is a proper cutters rough, with strong face potential and excellent patterning. Just needs the right hands to shape and polish