"beautiful" is the only word we could describe on this solid Australian black opal loose stone ... very dark body tone, great proportion, good large size, gorgeous play of color and most popular color of blue / green / violet. What more could you ask for? This quality 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.