Lightning Ridge Faced black knobby opal rub/rough 4.20cts Gorgeous Bright Royal blues ready to shape & Polish a Gem 15x11x6mm Lot B4-A718 wk_end_auction 🎲 Grade C (Gamble)The material

🎲 Grade C (Gamble)The material has some colours visible

00ct light base Coober Pedy seam opal rough features a visible blue bar ready to be explored

this piece holds great potential for cutting and polishing

Size: 22x10x8mm

This 230ct parcel of Coober Pedy seam opal rough offers an exciting opportunity for lapidary enthusiasts and opal collectors

Lightning Ridge Faced black knobby opal rub/rough 4.20cts Gorgeous Bright Royal blues ready to shape & Polish a Gem 15x11x6mm Lot B4-A718 wk_end_auction 🎲 Grade C (Gamble)The materialLot TitleFaced Black Knobby Rub Bright Royal Blue Lightning Ridge Opal Lot NumberB4 A718 DetailsWeight: 4. 20 ctSize: 15 x 11 x 6 mmOrigin: Lightning Ridge, AustraliaType: Faced Knobby RubUse: Cutters RubColour: Bright royal blue DescriptionPremium Lightning Ridge black opal rub with gorgeous royal blue fire already faced and ready for shaping. This knobby has been prepped to reveal its full colour bar no gamble here. High dome potential and excellent