Lightning Ridge Dark Base Seam opal rough 2.90cts Bright Greens & blues expose to chase & Polish 16x8x7mm Lot B4-A579 wk_end_auction Coober Pedy remains a world-famous

Coober Pedy remains a world-famous source of high-quality opals

Lot Title: Gorgeous Dark Crystal Knobby Opal Rough Half – 7

Description:A lovely small pair of seam opal roughs from Lightning Ridge weighing a total of 5

A promising piece with colour already present — but what's inside remains the gamble

Lightning Ridge Dark Base Seam opal rough 2.90cts Bright Greens & blues expose to chase & Polish 16x8x7mm Lot B4-A579 wk_end_auction Coober Pedy remains a world-famousLot Title: Green & Blue Flash Lightning Ridge Seam Opal Rough 2. 90ctsLot Number: B4 A579Details: 16x8x7 mm Dark Base Lightning RidgeDescription: Lightning Ridge dark base seam opal rough with bright green and blue colour exposed on the surface. A compact piece with good polish potential and visible fire but the depth of the bar remains uncertain. A solid gamble for cutters looking to chase small but promising face fire. Gamble Grade BC