That's a shame they shaved your ring down like that without asking. Back in the day unscrupulous watchmakers used to do the same thing when people would bring their solid gold-cased watches—the gold dust added up over time. The jeweler might have done it to make it wear more comfortably too though.
I was kind of mad at first, but I have learned to live with it. I can see how it might dig into my other fingers a little more the way it was, so I don't hate it that much :)