The Diamond Room has a very ritzy atmosphere, and I sometimes feel more than a little out of place walking into the store--I'm just particularly concerned (or informed) about jewelry. However, my husband and I shopped around a lot before buying my engagement ring and our wedding rings, and in the end we came back to the first place that had been recommended to us, The Diamond Room. We chose it because the prices and quality couldn't be beat.
The only downside, for me, is that the store is a little intimidating. I didn't feel that they were as prepared to explain jewelry in layman's terms, as the salespeople at the high-traffic chain stores are used to doing, and *one* of the salespeople really pushed more flashy, expensive rings that weren't our taste.
Overall, I've been very happy with the Diamond Room and would shop there again.