0.91 ct black opal 7.6x6x3mm$1,800.00 USD USD AUD Out of stock SKU: ACT2311 Category: Black Opal Opal Specifications Additional information Weight 0.91 ct Dimensions 7.6 × 6 × 3 mm Body Tone Black N4 Brightness B3 Bright Cut Oval Dome Low Dome Opal Origin Lightning Ridge Predominant Colors Blue, Red Product Enquiry