0.51 ct black opal 6.1×6.1×2.4mmUS$250.00 USD USD AUD Out of stock SKU: OT2303 Category: Black Opal Opal Specifications Additional information Weight 0.51 ct Dimensions 6.1 × 6.1 × 2.4 mm Body Tone Black N2 Brightness B2 Moderately Bright Cut Freeform Dome Medium Dome Opal Origin Lightning Ridge Predominant Colors Blue Product Enquiry