2.70 ct black opal 12x8x4mmUS$475.00 Out of stock SKU: GF1801 Category: Black Opal Tags: Duke Ring, Saxon Ring Opal Specifications Additional information Weight 2.70 ct Dimensions 12 × 8 × 4 mm Body Tone Black N2 Brightness B3 Bright Cut Oval Dome Medium Dome Predominant Colors Orange Opal Origin Lightning Ridge Product Enquiry