Cz skeleton heart Key charm on silvertone necklace 16in

excellent preloved condition cz open circle key on a charm with lobster clasp so can be put on a bag or keychain etc...16in chain lobster clasp. there is a single cz on back of key, I'm not sure if that signifies a brand or is just a design detail. theres a tiny spot on bottom of back of key as shown in photos please use photos for measurements and details and condition other items are display only