Several years ago, my DH brought me a sterling silver choker from Jordan. It is the most beautiful, unique piece of jewelry I've ever seen. It has carved doves and other detail work on it, and I simply love it. The problem is that it has a box clasp (see link below if you don't know what a box clasp is) that keeps coming undone. I don't wear the necklace nearly as much as I'd like to because I'm afraid I'll lose it. It has fallen off several times. My question: Is there a way to either repair/replace the clasp or have a jeweler add a little chain to the back of the necklace with a lobster or spring ring clasp so that if the box clasp fails, the necklace won't fall off my neck? My pearl necklace has such a chain on it, but I don't know if this is something that a jeweler could easily do to a choker necklace. Alternately, is there a way to tighten the box clasp so it will work properly?

http://jewelry.about.com/od/je.....asps_3.htm