4.28 ct top gem cushion cut black opal collectors piece 13x9x4mmUS$38,000.00 Out of stock SKU: AS1801 Category: Black Opal Opal Specifications Additional information Weight 4.28 ct Dimensions 13 × 9 × 4 mm Body Tone Black N1 Predominant Colors Green, Red Brightness B4 Very Bright Cut Cushion Dome Low Dome Product Enquiry