Lightning Ridge Half a knobby opal rough 15.50cts Blue colours to chase 22x15x10mm Lot B4-A299 ToClear 75cts Lightning Multi-Colours

75cts Lightning Multi-Colours

Grade Key: 🔥 Grade A - High-quality opal with low risk

00ct split pair of knobby rough from Lightning Ridge with bright blue bars showing on a dark base

Lot Title: Coober Pedy Seam Opal Rough Split – 37

💚💛💙 Green

Lightning Ridge Half a knobby opal rough 15.50cts Blue colours to chase 22x15x10mm Lot B4-A299 ToClear 75cts Lightning Multi-ColoursAuction Listing for Bid 4. com Lot Title: Lightning Ridge Half Knobby Opal Rough 15. 50cts Blue Colours to Chase Lot Number: B4 A299 Details: Origin: Lightning Ridge, Australia Type: Half Knobby Opal Rough Carat Weight: 15. 50cts Size: 22x15x10mm Features: Blue colours exposed with more to chase. Description: This 15. 50ct half knobby opal rough from Lightning Ridge features exposed Blue colour zones ready to be worked. A substantial piece offering