4.78 ct gem black opal 13.7×7.9×7.1mm$32,000.00 USD USD AUD Out of stock SKU: PLT2101 Category: Black Opal Opal Specifications Additional information Weight 4.78 ct Dimensions 13.7 × 7.9 × 7.1 mm Body Tone Black N4 Brightness Vivid B5 Cut Oval Dome High Dome Opal Origin Lightning Ridge Predominant Colors Orange, Red Product Enquiry