2.78 ct boulder opal 10x9x3.3mmUS$500.00 In Stock 2.78 ct boulder opal 10x9x3.3mm quantity Add to cart SKU: JN23002 Category: Boulder Opal Tag: Blazing Boulders Opal Specifications Additional information Weight 2.78 ct Dimensions 10 × 9 × 3.3 mm Brightness B3 Bright Cut Freeform Dome Low Dome Opal Origin Queensland Predominant Colors Blue, Gold Product Enquiry