21.1 cts Rough Black Opal Lightning Ridge for Carving

Item description Opal

Gemstone Type: Rough  Opal

Weight: 21.1 carats

Dimensions: L 39.6 mm x W 22.1 mm x H 10.7 mm

Colour: Green/Blue

Gemstone: Australian Opal

Uses: Carving

Treatments: None

Origin: Australian Solid Opal Rough Lightning Ridge

Water is sprayed on the opal to simulate a polished stone