12 or 14 karat gold pendant

this is a 12 or 14 karat gold pendant and the name says i r e n e it needs a little bit cleaning I don't want to mess with gold so if you know anything about gold you could clean it it's not really scratched or nothing believe it or not I mean it's really old it's 1985 that's how old it is I need to sell it for $40 please understand I'm trying to save up enough money to get my stepdad his ring that he lost