Lightning Ridge Rub rough knobby opal formation 4.00cts Blues to exposed face 14x13x5mm B4-A161 wk_end_auction 50ct white base seam opal

50ct white base seam opal rough from Coober Pedy presents a lovely play of yellow and blue fire

Partially set with Cubic Zirconia for added sparkle

ready for cutting

🎲 Gamble Grade C (Gamble) – Bright colour visible in a small zone

Lightning Ridge Rub rough knobby opal formation 4.00cts Blues to exposed face 14x13x5mm B4-A161 wk_end_auction 50ct white base seam opalLightning Ridge Rub Rough Knobby Opal Formation 4. 00cts Lot: B4 A161Size: 14 x 13 x 5mmWeight: 4. 00 caratsOrigin: Lightning Ridge, Australia This rub rough knobby opal formation from Lightning Ridge features blue colors already exposed on the face, making it a promising piece for lapidaries and collectors. With its natural formation and visible fire, this opal holds potential for cutting and polishing into a stunning gemstone. Natural & Untreated