My ering is palladium...the stacker ring is 18k over sterling.
I bought it to keep the ring a little snugger until we get married but when I was cleaning it yesterday I noticed it looks like it now has a "brushed" finish on it in a perfect circle around the ring..right where they met on my finger. I tried silver polish with a slight improvement but this is freaking me out.I just want to cry!

I've had her for a little over a week! Will this etching polish out? And would a palladium stacker ring do the same thing? Can I put sizing beads on a euro shank ring? I don't want to size it smaller (maybe 1/4 size down? because I know it'll fit fine with the wedding band but that's not going on until next December. Please advise all you jewelry geeks...(Love you all! :))