Can anyone recommend a diamond solitaire necklace for under $500US? I realize that is a limited budget but I'm looking for simply a "starter" necklace. I want quality over quantity - meaning diamond size is not as important as overall diamond quality. I want something preferably in white gold. Blue Nile has a standard one in the .25 carat at that price point but is it a decent enough diamond (the choose your own option is more expensive and over my price point)? I also considered a Tiffany DBTY but that is in silver at that price point and a very small diamond (.05) so I'm not sure. Any ideas would be very much appreciated.