Not if it's on a wallet! Yes, the impressions will remain, but my gold-stamped Curieuse wallet lost some color from the stamping within the first few weeks. I was not happy, but there's nothing they can do. I am extremely careful with my LV items, but since it was on the underside of the flap, I think it rubbed against the cards in the slots.
I did not get my second Curieuse stamped for that reason.
I'll add that the stamping on both of my Neverfull bags has remained 100% intact. Again though, an exterior personalization rubbing up against something from time to time is very different than a wallet flap rubbing against cards.