Sale! 16.69 carat gem black opal 23.5x20x5.5mmUS$18,000.00 US$12,000.00 Out of stock SKU: TD1932 Category: Black Opal Opal Specifications Additional information Weight 16.69 ct Dimensions 23.5 × 20 × 5.5 mm Body Tone Black N3 Predominant Colors Blue, Green Brightness B4 Very Bright Cut Oval Dome Low Dome Product Enquiry