This makes them a perfect gift for the engagements too. Culturally too, rings have been the perfect gift for brides. And with diamond studded in them, the rings get even better place in the hearts.
A diamond is graded on four criterias, commonly called the 4 C’s, used worldwide to tell the quality of diamonds. Cut, Clarity, Color and Carat (weight). There is a range for all of these characteristics and we would all want them to be perfect, except for the Carat weight, which defines the size of the diamond. If this is not really something you understand, keep in mind that what you expect from a diamond is its ability to returns the most light that enters into it. That said, the better it is graded, the more brilliant and sparkling it is.
For a long time, diamonds were only used by the royalty. This is how they became a status symbol, a sign of wealth and power, and only kings can have the most exquisite variety of these gems.