3.55 ct black crystal opal 12×8.5×4.5mm$2,500.00 USD USD AUD Out of stock SKU: PG1701 Category: Black Opal Opal Specifications Additional information Weight 3.55 ct Dimensions 12 × 8.5 × 4.5 mm Body Tone Black N4 Predominant Colors Green, Orange Brightness B3 Bright Dome Medium Dome Cut Oval Opal Origin Lightning Ridge Product Enquiry