3.10 ct gem black opal 11.5x10x4mm$6,500.00 USD USD AUD Out of stock SKU: GS1818 Category: Black Opal Product DescriptionThis gem is a perfect size for a ring stone. Opal Specifications Additional information Weight 3.10 ct Dimensions 11.5 × 10 × 4 mm Body Tone Black N4 Predominant Colors Green, Orange Brightness B4 Very Bright Cut Oval Dome Low Dome Opal Origin Lightning Ridge Product Enquiry