0.64 ct black opal 7×6.6x2mm$300.00 USD USD AUD Out of stock SKU: A22W79 Category: Black Opal Opal Specifications Additional information Weight 0.64 ct Dimensions 7 × 6.6 × 2 mm Body Tone Black N3 Brightness Bright B3 Cut Round Dome Low Dome Opal Origin Lightning Ridge Predominant Colors Green Product Enquiry