The Cartier in Beverly Hills has cleaned and polished my Wife's bracelets for free several times. But she has since decided she doesn't want to take them off anymore. Our SA at Cartier BH gave us a jewelers polishing cloth which she now uses to keep them clean. After a couple of years of wear since the last polish they still look great after treatment with the cloth. They shine but are scratched; She wears the scratches like a badge of honor! We recently met a couple that put the love bracelets on each other for their wedding 25 years ago and have neve taken them off!