I actually think there is a lot of overreaction here. Woodstock's fiancee got her a ring that really was impractical. He proposed with it. I can understand Woodstock's initial reluctance to tell him she doesn't like or want the ring. I don't think that she should have been influenced by other's opinions of the ring. I do think that she should have taken a few days, really thought about how to explain her feelings to her fiancee, and told him honestly that the ring just is not right for her. But, that's easy for me to say, I'm not in the situation. It's always much easier to know "the right thing to do" when you don't have to deal with the consequences. If her fiancee was being difficult about returning the ring, maybe Woodstock resigned herself to it and let it grow on her. After it broke, it became obvious to both she and her fiancee, that the ring was a poor choice (and clearly over priced). I got no impression, at all, that the cost of the ring was influential. Woodstock came across, from the beginning, as rather frugal about spending a lot of money on an engagement ring. I think she should have the ring she wants. I don't think it's fair to judge her and suggest that her relationship is a mess because of this. Some women dream of a "perfect ring", when that doesn't happen, they are allowed to feel disappointed. That doesn't mean they are disappointed in their fiancee. Some women could care less about the ring, that's fine. But that doesn't make the woman who does care a bad person.
My husband didn't give me a ring. I was a little disappointed, but we were saving to buy a house, so.... My mother gave me her original engagement ring diamond to have reset. My husband was fine with that. We had it set the way I wanted it. That was it.
Woodstock, just return the ring. You will not be happy with it. Your fiancee will not be happy with it. Stop feeling guilty and prolonging the agony. Go with your fiancee, take it back and get what you want. The end.
And, I would not continue to discuss this here. Just let us know you're happy.