0.28 ct black opal 6.3×3.7×1.8mmUS$350.00 USD USD AUD Out of stock SKU: A22H9 Category: Black Opal Opal Specifications Additional information Weight 0.28 ct Dimensions 6.3 × 3.7 × 1.8 mm Body Tone Black N4 Brightness B5 Vivid Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Predominant Colors Green Product Enquiry