Where is a good place to purchase an engagement ring or bridal set?

Shop around for the perfect ring and don't be afraid to negotiate (especially for the diamond). I had a specific band I wanted so we purchased it first at a local jewelry store (the store was the only one in our area that carried it) and shopped around for the diamond. We had two chain jewelry stores in competition for the diamond sale. Both stores even ordered in additional diamonds for us to look at. In the end the diamond was purchased at Kay at a significant discount. They were extremely helpful and accommodating. We ended up purchasing my fiance's wedding band there as well.