18.40 cts Australian Semi Black Opal Rough, Lightning Ridge, Polished Specimen

Item description

Gemstone Type: Polished ROUGH Specimen

Body tone: N6 - N7

Colour: Green/Blue

Gemstone: Natural Solid

Weight: 18.40 carats

Dimensions: L 20.4 mm

W 17.2 mm

H 13.2 mm

Origin: Lightning Ridge Australia

Recommended uses: Cutting for Fine Jewellery/ Specimen / Collectors

Treatment: No