This is a Koroit Matrix Opal Stone which comes from the Koroit Opal fields of Queensland, Australia. The stone has been drilled and could be fitted with a Bail at a small extra cost. It shows Purple & Blues set in brown ironstone on both sides
If you see an opal on this website that you might like to have as a pendant, please contact Peter to discuss if it is possible with that particular stone.
You also need to state if you wish to have a bail fitted or not. If you do, then you would need to be charged for the cost of metal, silver or gold.