306.70 cts Australian Black Opal Rough, Lightning Ridge

Item description

Gemstone Type: ROUGH Opal

Body tone: N3 - N7

Colour: Green/Blue/Pink

Gemstone: Natural Solid

Weight: 306.70 carats

Dimensions: L 73.3 mm W 41.0 mm H 14.1 mm

Origin: Lightning Ridge Australia

Recommended uses: Cutting for Fine Jewellery/ Specimen / Collectors

Treatment: No