1.42 ct black opal gem 8mm round x 2.3mmUS$4,500.00 Out of stock SKU: GB2015 Category: Black Opal Opal Specifications Additional information Weight 1.42 ct Dimensions 8 × 8 × 2.3 mm Body Tone Black N4 Predominant Colors Blue, Red Brightness B4 Very Bright Cut Round Dome Medium Dome Opal Origin Lightning Ridge Product Enquiry