20.4cts Rough Opal Lightning Ridge for Carving

Item description

Gemstone Type: Rough  Opal

Weight: 20.4 carats

Dimensions: L 29.1 mm x W 23.3 mm x H 6.1 mm

Colour:  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