It's just happened to me was doing a routine cleaning of my unworn silver jewellery, which involves warm soapy water and polishing cloth, but as I was cleaning the blue heart key, the heart fell right off!! I was surprised to find that Tiffany enamel appears to be a plastic cap (or maybe it's just this piece) but it's pretty disappointing, and I doubt there's much that Tiffany can do as it's a few years old That and it's probably not worth making multiple trips to Tiffany with no guarantee of getting it fixed. Even though I no longer wear this key, I still like it because it's cute. Should I try supergluing the heart back on? I only have Gorilla superglue and GS Hypo Cement to hand