5.76 ct boulder opal 20.5×9.2×3.7mmUS$1,500.00 Out of stock SKU: ZC2319 Category: Boulder Opal Opal Specifications Additional information Weight 5.76 ct Dimensions 20.5 × 9.2 × 3.7 mm Brightness B2 Moderately Bright Cut Drop Dome Low Dome Opal Origin Lightning Ridge Predominant Colors Green Product Enquiry