If 13 is your lucky number, black cats are your favourites, and you're a force of nature to be reckoned with, maybe this solid 9k yellow gold charm was made for you!? Whether you're superstitious or not, gold is always a good idea... And if you get given this shiny 13 as a present, then you're certainly most lucky indeed. Or maybe you're the type who makes their own luck? Good for you! Go for it, here's your perfect lucky charm to make it all happen. It won't let you down!
[NB: Listing is for the charm only! The chain is just used as an example of how you could style it and not for sale. Unless you make me an offer I can't refuse, that is...]