I think you'll find they're on the way to FND when she tells her, that's the reason I asked. Lorelai could very well give the ring back to Christopher at the end of 7.14. I don't know. I just think the moment where she takes it off will be a pivotal moment - then again we never saw her taking of Luke's engagement ring or Max's engagement ring, so it could very well be swept under the carpet like everything else

Forgot to say before, thanks lilmelodie for the new thread.