3.42 ct black opal 12x10x4mmUS$3,500.00 Out of stock SKU: 241OUY1 Category: Black Opal Opal Specifications Additional information Weight 3.42 ct Dimensions 12 × 10 × 4 mm Body Tone Black N4 Predominant Colors Blue, Green Brightness B3 Bright Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Product Enquiry