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 there's a chance at a

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

Lot NumberB4-A723

The dark base helps enhance the vibrancy of the colour play

Solid piece with visible blue bar

It features mesmerizing blues and greens that shift and shimmer beautifully under light

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 there's a chance at aLot 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