Rings

Anyone know where I can get rings. Looking for one saying "mum" and one saying "dad" that can also be engraved with a date.

Preferably a shop so we can make sure the sizing is right (were in the UK) however we probably could just order online if needed.

Want something that won't turn fingers green ect. But I don't want it to cost the earth!!

Not sure on styles so would also appreciate any photos/ideas 😊