Lightning Ridge Black/Dark Seam opal rough 7.20cts Bright Vibrant Blues to face up & polish 16x12x7mm Lot B4-A692 wk_auction with good thickness and shape

with good thickness and shape for working

Lot Number: B4-A049

25cts – Bright Green/Blue/Yellow Hues

Ideal for skilled cutters who enjoy the challenge of unlocking hidden fire or collectors looking for sizeable Coober Pedy rough with colour promise

Grade A to B — strong face

Lightning Ridge Black/Dark Seam opal rough 7.20cts Bright Vibrant Blues to face up & polish 16x12x7mm Lot B4-A692 wk_auction with good thickness and shapeLot 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