I've been married before and am getting re-married next May so I've been where you are now! My first marriage didn't end well and I had two engagement rings. One was my grandmother's which I obviously kept regardless of the outcome of the marriage. The one that my ex gave me was a 1.50 carat emerald cut solitaire, very simple, but pretty. I ended up selling it because while I didn't need the money, I just wanted it gone and no reminders of what a cheater he was. I then donated the money to Dress for Success NYC. It made me feel better knowing that the money from a ring to a failed marriage helped one of my favorite charities!