Interesting topic.
We had my wife's grandmother's wedding ring, a really nice old setting, all the positive cut/clarity buzzwords for the diamonds on the ring you can imagine: Fantastic.
When Jack told us he was proposing to his girlfriend, my wife asked Jack if he wanted the larger main diamond and put in a setting to his finances taste.
It was Jack's idea to take the smaller diamond in the ring and make a set of earrings for my wife and daughter.
His fiance loves the new setting. My wife and daughter will get their earrings as a surprise at his wedding in October.
I got nuttin'