The word Diamond is a Greek word meaning "unbreakable" or "unalterable".  This is why diamonds are so often used in wedding sets to symbolize the unbreakable, unaltering love that is shared.  

When you are looking for that perfect diamond to express your love, there are four things that you need to know.  They are commonly refered to as the Four C's of a diamond.  Cut, Carat, Color and Clarity.