3.64 ct boulder opal 16.9×10.7×3.3mm$1,500.00 USD USD AUD Out of stock SKU: A22Z08 Category: Boulder Opal Opal Specifications Additional information Weight 3.64 ct Dimensions 16.9 × 10.7 × 3.3 mm Body Tone Black N3 Brightness Bright B3 Cut Freeform Dome Low Dome Opal Origin Lightning Ridge Predominant Colors Green Product Enquiry