Gorgeous Rolling flash Great from all angles high dome knobby opal rub/preform 1.90cts Perfect ring stone to finish 8x7x4mm Lot B4-A771 wk_end_auction The colour bar is well-positioned

The colour bar is well-positioned across a thin

Place your bids now on Lot B4-A157 and discover the hidden treasures within this opal rough

Solid piece with visible blue bar

AustraliaType: Knobby Opal Rough (Half)Use: Cutting RoughColour: Green hues

there's a chance at a nice small cutter if you chase it right — solid shape and decent bar signs to work with

Gorgeous Rolling flash Great from all angles high dome knobby opal rub/preform 1.90cts Perfect ring stone to finish 8x7x4mm Lot B4-A771 wk_end_auction The colour bar is well-positionedLot Title: Lightning Ridge Knobby Opal Rub 1. 90cts Rolling Flash High Dome Grade A Cutter's RubLot Number: B4 A771Details: 8x7x4 mm 1. 90cts Lightning Ridge Knobby Opal Rub PreformDescription: Gorgeous high dome knobby opal rub from Lightning Ridge, weighing 1. 90cts. Displays rolling flash thats great from all angles, with multicolour play shimmering across the curved face. This preform is almost there just needs the final shaping and polish to