This is a true blue black opal which everyone is looking for ... deep violet, blue, green color showing full face, nice size and shape, comes with dark color and more to offer. High quality Australian black opal is only to be found at Lightning Ridge, NSW, Australia.
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.