I came across this website that specializes in resaling jewelry- but there's a unique business angle to this site, I Do Now I Don't http://www.idonowidont.com/.
The site offers an outlet for people ready to unload their leftover “assets” from a failed relationship, or a diamond ring they have not worn in years. The item descriptions have stories on them like "this was worn for a few months by by fiancee but it wasn't meant to be." I like this ring above. I don't think I would mind if I had gotten my ring this way.
Would you mind getting a ring with "history"?