Lightning Ridge Black/Dark Seam opal rough 7.20cts Bright Vibrant Blues to face up & polish 16x12x7mm Lot B4-A692 wk_auction While not guaranteed

While not guaranteed

Great for cutters looking to chase opal in its natural formation or for collectors interested in Ridge geology

Features: Blue dominant fires complemented by green flashes

🎲 Gamble Grade C (Gamble) – Pinfire flashes of colour

💎 Place your bids now for Lot B4-A348

Lightning Ridge Black/Dark Seam opal rough 7.20cts Bright Vibrant Blues to face up & polish 16x12x7mm Lot B4-A692 wk_auction While not guaranteedLot Title: Lightning Ridge Black Dark Seam Opal Rough 7. 20cts Bright Vibrant Blues Grade A to BLot Number: B4 A692Details: 16x12x7 mm 7. 20cts Lightning Ridge Black Dark Seam Opal RoughDescription: Lightning Ridge black dark base seam opal rough, weighing 7. 20cts. Bright, vibrant blues showing material to face up and polish into a quality gemstone. Grade A to B strong visible colour, low to medium risk, a cutters gamble for skilled hands. Grade A to