2.31 ct black opal 12×8.5×3.6mm$5,000.00 USD USD AUD 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 Blue, Green, Red, Gold Product Enquiry