Large Dark Opal with Ribbon Pattern from Lightning Ridge, Australia

Dark Opal from Lightning Ridge

Weight: 15.60 ct

Body Tone: N6 Black Opal

Color: B4-5 Vivid Multicolor

Shape: Oval

Pattern: Ribbon

Dimensions: 25.8 x 16.2 × 4.7 mm

Origin: Lightning Ridge, Australia

Treatment: No Indication of heating