This is a natural Opal that is found in the sandstone of the Boulder Opal fields of Queensland, Australia. It has been treated by being carbonised giving an appearance of Black Opal. It has a Sterling Silver fitting and Bail. Weight of the silver is approximately 15.30 carats.
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.