Carat

A diamond’s carat is the measurement of its weight. A metric “carat” is defined as 200 milligrams. A diamond under one carat can also be measured by its “points”. For instance, a diamond weighing .5 carats may be referred to as a “fifty pointer”.  

A diamond’s price increases with diamond carat weight, because larger diamonds are more desirable and more rare. But two diamonds of equal carat weight can be priced very differently depending on the three other factors of the diamond 4Cs--the color, clarity and cut.  

It’s important to understand that the value of a diamond is determined using all of the 4Cs, not just the carat weight.