3.73 ct black opal 12.3×8.5×5.5mm$1,000.00 USD USD AUD Out of stock SKU: SM2132 Category: Black Opal Opal Specifications Additional information Weight 3.73 ct Dimensions 12.3 × 8.5 × 5.5 mm Body Tone Black N2 Predominant Colors Purple, Blue Brightness B3 Bright Cut Oval Dome High Dome Opal Origin Lightning Ridge Product Enquiry