0.31 ct dark opal 6×3.5×2.2mmUS$200.00 Out of stock SKU: M22M007 Category: Dark Opal Opal Specifications Additional information Weight 0.31 ct Dimensions 6 × 3.5 × 2.2 mm Body Tone Dark N6 Brightness B3 Bright Cut Marquise Dome Medium Dome Opal Origin Lightning Ridge Predominant Colors Green, Gold Product Enquiry