An absolutely STUNNING opal! I'm sure it's already been said, but make sure you put it in a secure setting, and I'd probably wear it as a pendant as opposed to a ring. Reason being they're very soft and break easily. I have an opal and diamond eternity ring that I love, and in the 10 years I've had it, 2 opals have broken. Because of the colour of the opals, I have a real job trying to get a perfect match to fit where the broken ones have been. They tried to fob me off with the nasty milky looking ones with no colour. No good, as my opals are full of colour!
Anyhow, not trying to scaremonger you. Congratulations on your beautiful purchase, and may you enjoy it for many, many years to come.:
I am eyeing on this ring setting. But my opal is oval shape. I think the gold around the opal will protect it from bumping elsewhere. I hope!