Untouched Knobby opal formation rough of Lightning Ridge 21.20cts Crystal on Black base with Blues & greens 31x21x10mm Lot B4-A727 ToClear Lightning Ridge Small Light Base

Lightning Ridge Small Light Base Multicolour Seam Opal Rough – 4

this opal is a perfect addition to any collection or custom design

but small size and depth call for precision — low to moderate risk

offering a moderate challenge with good reward for skilled cutters

50cts with Bright & Stunning Greens & Blues to Chase & Polish

Untouched Knobby opal formation rough of Lightning Ridge 21.20cts Crystal on Black base with Blues & greens 31x21x10mm Lot B4-A727 ToClear Lightning Ridge Small Light BaseLot TitleCrystal on Black Base Knobby Lightning Ridge Rough with Blues & Greens Lot NumberB4 A727 DetailsWeight: 21. 20 ctSize: 31 x 21 x 10 mmOrigin: Lightning Ridge, AustraliaType: Knobby Opal FormationUse: Carving Gamble CuttingColour: Blues & greens DescriptionUntouched knobby opal formation from Lightning Ridge featuring crystal cap on a black base. Flashes of blue and green appear through the skin in several spots, with strong contrast expected