3.88 ct boulder opal 19×8.5×3.4mm$800.00 USD USD AUD In Stock 3.88 ct boulder opal 19x8.5x3.4mm quantity — OR — Add to cart SKU: ABB2306 Category: Boulder Opal Opal Specifications Additional information Weight 3.88 ct Dimensions 19 × 8.5 × 3.4 mm Brightness B2 Moderately Bright Cut Freeform Dome Medium Dome Opal Origin Winton Predominant Colors Blue, Green Product Enquiry