This is a lovely stone which comes from the Koroit Opal Fields of Queensland, Australia. As with all opals it is totally unique. It shows sparkles of predominately Green and some Blue on both sides of the stone It would be ideal as a pendant and could be drilled and fitted with a Sterling silver bail at a small extra cost.
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.