1.78 ct black crystal opal 9.4×7.6×4.3mm$5,000.00 USD USD AUD Out of stock SKU: HG2106 Category: Black Opal Opal Specifications Additional information Weight 1.78 ct Dimensions 9.4 × 7.6 × 4.3 mm Body Tone Black N4 Brightness Very Bright B4 Cut Oval Dome High Dome Opal Origin Lightning Ridge Predominant Colors Blue, Green, Gold Product Enquiry