Stunning Knobby opal parcel 13.25cts Lightning Ridge Super Bright Crystal Material too cut & Polish 24x12x4 to 13x12x3 mm Lot B4-A820 wk_end_auction AustraliaType: Knobby Opal RoughUse: Cutting

AustraliaType: Knobby Opal RoughUse: Cutting RoughColour: Bright blueBase: Dark

but inclusions require careful cutting

Lot Title: Lightning Ridge Opal Formation Rough – 5

This Winton boulder opal rub/rough shows a small but striking zone of red fire already exposed on the face

vibrant multicolours across its untouched surface

Stunning Knobby opal parcel 13.25cts Lightning Ridge Super Bright Crystal Material too cut & Polish 24x12x4 to 13x12x3 mm Lot B4-A820 wk_end_auction AustraliaType: Knobby Opal RoughUse: CuttingLot Title#Grade A Cutters Super Bright Crystal Knobby Opal Parcel (Lightning Ridge) Lot NumberB4 A820 DetailsWeight: 13. 25 ct (parcel)Size Range: 24 x 12 x 4 mm to 13 x 12 x 3 mmOrigin: Lightning Ridge, AustraliaType: Knobby Crystal Opal RoughUse: Cutting PolishingColour: Super bright crystal fire DescriptionStunning parcel of Lightning Ridge super bright crystal knobby opal totalling 13. 25cts. These stones display intense internal fire, typical of