Thin profile knobby opal rough 2.50cts Dark base with Yellow/Green/Blue fires inclusions to work around 13x12x3mm Lot B4-A469 Premium making it ideal for crafting

making it ideal for crafting bespoke jewellery pieces

00ct pair of Coober Pedy crystal seam opals showcases thick bar structure with abundant blue fire across both pieces

Type: Black Knobby Opal Rough

Dark base enhances the play-of-color

Rich dark base with gorgeous blue colour showing

Thin profile knobby opal rough 2.50cts Dark base with Yellow/Green/Blue fires inclusions to work around 13x12x3mm Lot B4-A469 Premium making it ideal for craftingAuction Listing for Bid 4. com Lot Title: Thin Profile Knobby Opal Rough 2. 50cts Dark Base with Yellow Green Blue Fires Lot Number: B4 A469 Details: Origin: Lightning Ridge, Australia Type: Knobby Opal Rough Carat Weight: 2. 50cts Size: 13x12x3mm Features: Dark base with visible yellow green blue fires, small size with inclusions Description: This 2. 50ct thin profile knobby opal rough from Lightning Ridge features vibrant yellow, green, and blue