One of my daughters who is patiently waiting for "the big question" would love to know this. Although I would have to say a diamond with a WalMart tag probably wouldn't quite cut it, ya know?
As a girl who is also awaiting the big question, don't ask for diamonds. If you ask for a colored gemstone, such as a ruby or sapphire (which I'm sure is what I'm getting), You can get a bigger rock for less money, and have that much more money to spend on te honeymoon, or wedding, or setting up a house.