0.37 ct crystal opal 5.5x5x2mm$100.00 USD USD AUD Out of stock SKU: UN195 Category: Crystal Opal Product Description 0N0A0084 from Black Opal Direct on Vimeo. Opal Specifications Additional information Weight 0.37 ct Dimensions 5.5 × 5 × 2 mm Body Tone Dark N6 Brightness B3 Bright Cut Oval Dome Medium Dome Predominant Colors Red Product Enquiry