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 Solid piece with visible blue

Solid piece with visible blue bar

perfect for a skilled carver or a collector of mini masterpieces

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

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

This rub/rough hybrid has been lightly worked to expose areas of promising colour

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 Solid piece with visible blueLot 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