Carat weight is a measure of weight on a scale, not its dimensions. The carat weight can be broken down into a smaller measurement called a point. 100 points make up a carat; therefore a 50 point diamond is the same as a ½ carat and a 0.50 carat (ct) diamond. It is important to note that carat alone is meaningless unless you consider the Cut, Color & Clarity of a diamond. However size does increase the value of a diamond for the simple reason that large diamonds are rarer than smaller diamonds.

Fact: Only one polished diamond in a thousand weighs more than one carat.