6.86 ct black opal 17.7×11.7×4.2mmUS$500.00 Out of stock SKU: AWB2306 Category: Black Opal Opal Specifications Additional information Weight 6.86 ct Dimensions 17.7 × 11.7 × 4.2 mm Body Tone Black N1 Brightness B2 Moderately Bright Cut Oval Dome Low Dome Opal Origin Lightning Ridge Predominant Colors Blue, Red Product Enquiry