We just got engaged this past July. I spent about 2 and a half weeks salary on her and it's a much nicer ring then either of us have seen on anybody's finger. The two month salary thing would have bought us a nice bike and we both felt the same way about that. It was a total surprise to her though and she thought I was just goofing around with her. She tapped the ring and jokingly said "is it real?" I looked her in the eyes and said yup! Took her a few moments to grasp what had just happened and she almost colappsed. It was a good thing, and we're both very happy. She loves her ring and she could care less about how much it costs. It's hers, and I gave it to her. That's what matters to us.

Incidentially the (Canadian, nice!) diamond was appraised (according to the card that came with it) at almost double what the ring was bought for. Imagine that!