Quoted from ZooDude:Go vintage, don't buy blood diamonds, get something cool and unique, you only get married two or three times in a lifetime, don't overthink it.
B
My (now) wife wanted a simple solitaire, so I got her a ring 100+ years old largely because the diamond was an old European cut. I figured if she was going to have a common design it better be unique in some way. If you're going for something simple go antique is my $.02. Of course lab grown is best, but for whatever reason some women don't want that. Just make sure it isn't a conflict diamond.