I bought a e-ring ring from Blue Nile for my girlfriend, and it is beautiful, but I notice that one of the 4 prongs has a scuff, or a scratch on it. I phoned Blue Nile and they said they would be happy to fix it, but I am in Canada, and it would cost me over $400 to send it there and back with all the taxes/ duty, etc... so I was wondering if any local jeweller would be able to buff it out?! Is it something that is a big deal?