1.87 ct gem black opal 10×7.5x4mm$15,000.00 USD USD AUD Out of stock SKU: TM20205 Category: Black Opal Opal Specifications Additional information Weight 1.87 ct Dimensions 10 × 7.5 × 4 mm Body Tone Black N3 Predominant Colors Blue, Red Brightness Vivid B5 Cut Oval Dome Medium Dome Opal Origin Lightning Ridge Product Enquiry