I personally would want one that has symbolic meaning, so that really is up to the couple, I met a couple at the Grand Canyon who had their wedding rings made and they were matching gold bands in the shape of a scarab and on the inside a private inscription that had to be the the most unique wedding bands I've ever seen.So bottom line their is not a right answer to this question, some like the diamond quality and size and traditional style others make get theirs tattoed on so just have fun and be happy and be honest with your likes or dislikes, good luck!