Can you see a 'black cat' in the center of the opal? Perhaps a 'black puppy' instead? Offering special, this is a natural, Australian black opal loose stone showing a nice blue / green color, only to be found at Lightning Ridge, NSW, Australia, guaranteed you will love it !! Looks bright against the skin.
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.