Nice Cut/Polished Koroit Opal Cab/Freeform 59.4cts Patterns/Fires Queensland Au

I have for sale a NIce Cut/Polished Koroit Opal Freeform from Queensland Australia. This one weighs 59.4cts and is 39x24x5mm,.  Ironstone base with bands of patterns through it, on a red base ironstone.  Double sided piece, similar patterns front/back. Slight pits in a couple of spots on this, but will still make a superb pendant or add to a collection,. Thanks for looking