Or do you consider it a gift she can keep?
I think she should return it, its a gift but a very expensive gift that is dependant on the actual marriage
I personally would return it.
It would depend on the situation.
No, she should return it. Why keep it if you're not getting married?That was a sign of commitment to the person whom gave it to you. She should return it even if he is the one to call if off.
I think it should be. The ring is a promise to get married. If you aren't getting married, why keep it?