2.85 ct gem red blue on black opal 13x9x3mm$7,000.00 USD USD AUD Out of stock SKU: LF1701 Category: Black Opal Opal Specifications Additional information Weight 2.85 ct Dimensions 13 × 9 × 3 mm Body Tone Black N4 Predominant Colors Blue, Red Brightness B4 Very Bright Cut Oval Dome Low Dome Product Enquiry