Bargain Bin Emotions

Guys: Suppose you were going to propose sometime soon (you only lack courage!) and you don't yet have a ring. You source around for something nice, only to find that that very day there is a sale on a particular type of diamond ring, high in carat but low in style (you vaguely remember she mentioned it looked hideous). The sale is a very attractive one. Do you still buy her a ring like that?

Girls: Would you mind if your ring came from a bargain bin?

Would your partner's financial output, your own financial capability, age or number of previous partners you have had affect the answer to that question?