@Lokki said:
@Chris164, I'm afraid resizing titanium rings is a can of worms no jeweller will want to open. It's just too difficult to accomplish in any reasonable way. Still, excellent that you've got it now! Time to start inventing new uses for it, maybe hack something together (the ladies love random electronics too).
FWIW I heard that an "easy" way to resize a titanium ring is to shave off some of the material on the inside of the ring, basically kind of like converting a comfort fit ring into more of a straight ring. It will definitely allow a better fit for a bigger finger, but it doesn't really give you that much flexibility of enlarging a ring more than say 0.5-1 US ring size.