2.83 ct black opal 11.5x8x4mm$800.00 USD USD AUD Out of stock SKU: G17071 Category: Black Opal Tag: Duke Ring Opal Specifications Additional information Weight 2.83 ct Dimensions 11.5 × 8 × 4 mm Body Tone Black N4 Predominant Colors Blue, Green Brightness B3 Bright Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Product Enquiry