The opal is set into the butterfly's wing itself, catching the light exactly where the Blue Triangle's colour is at its most striking. A natural stone worked into an Australian butterfly, so the material and the subject are doing the same beautiful job.

The Blue Triangle, Graphium sarpedon choredon, is a native swallowtail found down the eastern seaboard, named for the band of luminous blue-green that runs across its wings. It is one of the few Australian butterflies most people can name on sight, and the colour is why.

Struck from 1oz of silver as a proof, the finish that shows the fine work in the wing detail against the stone.