1.66 ct gem black opal 8.7×8.1x4mm$4,500.00 USD USD AUD Out of stock SKU: N22O42 Category: Black Opal Tag: Radiant Ruthie Opal Specifications Additional information Weight 1.66 ct Dimensions 8.7 × 8.1 × 4 mm Body Tone Black N3 Brightness Bright B3 Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Predominant Colors Green, Red, Gold Product Enquiry