Another gorgeous piece of black opal loose found at Lightning Ridge, NSW, Australia, showing some distinctive patterns and colors, its body tone is very dark but there's another color-bar underneath the face, almost like 'double face opal' / 'reversible opal' .. it's pretty to look at and you'll love this for everything, guaranteed your happiness.
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.