3.27 ct gem black opal 13x8x4.5mmUS$8,000.00 Out of stock SKU: A21C3 Category: Black Opal Opal Specifications Additional information Weight 3.27 ct Dimensions 13 × 8 × 4.5 mm Body Tone Black N4 Predominant Colors Green, Red Brightness B4 Very Bright Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Product Enquiry