Pre-loved Diamond Necklace

Necklace from an ex. This was one of my favorite things to wear, but I want it to go to a new home. It's really classy and I got lots of compliments on it at work! I was told these are real diamonds but I have no paperwork. It has been priced accordingly. I also don't know the metal. The clasp on the chain works perfectly and there are no stones missing (I know the pictures make it look like there are, but it's just the lighting!) I'm very open to offers! Thanks for looking!