4.21 ct dark opal 17.7×11.4×3.6mm$2,500.00 USD USD AUD Out of stock SKU: F22U36 Category: Dark Opal Opal Specifications Additional information Weight 4.21 ct Dimensions 17.7 × 11.4 × 3.6 mm Body Tone Dark N6 Brightness B4 Very Bright Cut Freeform Dome Medium Dome Opal Origin Lightning Ridge Predominant Colors Orange, Gold Product Enquiry