4.27 ct black opal 12x10x5mmUS$300.00 Out of stock SKU: WW2018 Category: Black Opal Opal Specifications Additional information Weight 4.27 ct Dimensions 12 × 10 × 5 mm Body Tone Black N3 Brightness B2 Moderately Bright Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Predominant Colors Blue Product Enquiry