2.31 ct gem black opal 9×6.8×4.5mm SlessorUS$7,000.00 Out of stock SKU: USP192 Category: Black Opal Opal Specifications Additional information Weight 2.31 ct Dimensions 9 × 6.8 × 4.5 mm Body Tone Black N4 Brightness B4 Very Bright Cut Oval Dome Medium Dome Predominant Colors Red Product Enquiry