Large Dark Base Crystal knobby opal rough 33.00cts Lightning ridge Blues visible 360 to cut 28x25x10mm Lot B4-A583 Premium 50ct Coober Pedy seam opal

50ct Coober Pedy seam opal rough displays flashes of yellow and green fire on a light base

Description:A large

Moderate-to-high risk with some reward potential

but structure is inconsistent and depth unknown

Large Dark Base Crystal knobby opal rough 33.00cts Lightning ridge Blues visible 360 to cut 28x25x10mm Lot B4-A583 Premium 50ct Coober Pedy seam opalLot Title: Large Dark Base Crystal Knobby Lightning Ridge Opal Rough 33. 00ctsLot Number: B4 A583Details: 28x25x10 mm Lightning Ridge Dark Base CrystalDescription: Big Lightning Ridge dark base crystal knobby opal rough with blue fire visible 360 around the stone. Strong presence and size, with good shape for slicing or block cutting. This one offers big potential for experienced cutters chasing quality in bulk full of promise, ready to work. Cutters