3.66 ct gem black opal 13.5x8x4.7mmUS$20,000.00 Out of stock SKU: USP191 Category: Black Opal Opal Specifications Additional information Weight 3.66 ct Dimensions 13.5 × 8 × 4.7 mm Body Tone Black N4 Brightness B5 Vivid Cut Oval Dome Medium Dome Predominant Colors Red Product Enquiry