Quote from Rachel in The One with the Ring
Ross: God, that ring Chandler picked out was so beautiful. Phoebe: Yeah, you should know. You've bought like a billion of them. Ross: Ah, humor based on my pain. Rachel: You know what's funny? Of all of your wives, I'm the only one who never got a ring. Ross: This, uh, a big issue for you? Or what? Rachel: No, but, you know, it would have been nice to have a little memento of our married time together. Something other than the divorce papers and the hangover.