I have never had chipping on the enamel but both the blue and pink discolor after time. I have had a lot of blue pieces besides the mini bead bracelet and they all discolored over time. I had the matching pink RTT charm and it also discolored over time. They are unable to "repaint" the charms so you'd have to deal with them being discolored or buy replacements. While the color issue is better than it once was (my first blue enamel key turned mint green and my other items purchased a year or more afterwards get lighter in color), it still is not going to remain the same as when purchased. My red and hot pink mini RTT items do not discolor though (so far, also not as old).