0.77 ct black opal gem 7×6.5x2mm$800.00 USD USD AUD Out of stock SKU: A150107 Category: Black Opal Opal Specifications Additional information Weight 0.77 ct Dimensions 7 × 6.5 × 2 mm Body Tone Black N4 Predominant Colors Blue, Green Brightness B4 Very Bright Cut Oval Dome Medium Dome Product Enquiry