Another gorgeous piece of black opal loose offered for the lowest price, this is found at Lightning Ridge, NSW, Australia, guaranteed natural and guaranteed your satisfaction.
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.