Looks like a boomerang shape? This is a high grade natural Australian black opal loose stone comes with dark body, showing great play of color and so vivid, you will enjoy it even in the dark place or at the night time. 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.