6.75 ct boulder opal 19×10.2×4.1mm$1,100.00 USD USD AUD In Stock 6.75 ct boulder opal 19x10.2x4.1mm quantity — OR — Add to cart SKU: CM2309 Category: Boulder Opal Opal Specifications Additional information Weight 6.75 ct Dimensions 19 × 10.2 × 4.1 mm Brightness B2 Moderately Bright Cut Freeform Dome Medium Dome Opal Origin Queensland Predominant Colors Purple, Blue Product Enquiry