2.31 ct black opal 12×8.5×3.6mmUS$5,000.00 Out of stock SKU: PLT2105 Category: Black Opal Opal Specifications Additional information Weight 2.31 ct Dimensions 12 × 8.5 × 3.6 mm Body Tone Black N4 Brightness B4 Very Bright Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Predominant Colors Red, Gold, Blue, Green Product Enquiry