0.31 ct black opal 5.6×3.6×2.2mm$300.00 USD USD AUD Out of stock SKU: A22Z07 Category: Black Opal Opal Specifications Additional information Weight 0.31 ct Dimensions 5.6 × 3.6 × 2.2 mm Body Tone Black N4 Brightness B3 Bright Cut Oval Dome High Dome Opal Origin Lightning Ridge Predominant Colors Green Product Enquiry