0.40 ct black opal 6.1×4.7×2.1mm$50.00 USD USD AUD Out of stock SKU: RTW2535 Category: Black Opal Opal Specifications Additional information Weight 0.40 ct Dimensions 6.1 × 4.7 × 2.1 mm Body Tone Black N2 Brightness B3 Bright Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Predominant Colors Blue, Green Product Enquiry