2.90 ct black opal 12.1x10x3.6mmUS$800.00 Out of stock SKU: HT2136 Category: Black Opal Tag: Duke Ring Opal Specifications Additional information Weight 2.90 ct Dimensions 12.1 × 10 × 3.6 mm Body Tone Black N2 Brightness B2 Moderately Bright Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Predominant Colors Green, Orange, Red Product Enquiry