A triangular shape black opal loose, comes with very dark body and strong green flash. This will make a beautiful opal jewelry.
Another gorgeous piece of black opal found at Lightning Ridge, NSW, Australia, guaranteed natural.
The shape of opal. Our opal comes in Oval, Round, Teardrop, Square, Triangle and Free Shape.
Describes the arrangement of opal's play of colour. Please see Learn About Opal to understand more.
B1 is most desired and brightest to be seen, and B7 is most darkest / dullest of all.