1.70 ct gem black opal 9x7x3.5mm$4,000.00 USD USD AUD Out of stock SKU: 198M24 Category: Black Opal Opal Specifications Additional information Weight 1.70 ct Dimensions 9 × 7 × 3.5 mm Body Tone Black N2 Predominant Colors Blue, Green Brightness B4 Very Bright Cut Oval Dome Low Dome Product Enquiry