Lightning Ridge Black Centered Knobby opal rough 28.00ctsSome Bright Blues to Gamble 28x20x9mm Lot B4-A124 wk_end_auction With its natural formation and

With its natural formation and exposed fire

Lightning Ridge Knobby Opal Rough/Rub – 12

22 mm down to chip size

or light gamble parcel

Size Range: 16mm to chip size

Lightning Ridge Black Centered Knobby opal rough 28.00ctsSome Bright Blues to Gamble 28x20x9mm Lot B4-A124 wk_end_auction With its natural formation andLightning Ridge Black Centered Knobby Opal Rough 28. 00cts Lot: B4 A124Size: 28 x 20 x 9mmWeight: 28. 00 caratsOrigin: Lightning Ridge, Australia This black centered knobby opal rough from Lightning Ridge features some bright blue fire, making it an exciting gamble stone for lapidaries and collectors. With its deep color potential and natural formation, this opal offers a thrilling opportunity to uncover hidden brilliance through cutting and