Carat Weight

Diamonds are weighed by carat units. A carat is 0.2 grams, so a five carat diamond weighs one gram. The carat unit is divided into 100 points, so that a half carat diamond is 50 points in weight or 0.50 ct. and so on.

The weight of the diamond corresponds to a certain size in diamonds, mostly referring to round brilliant diamonds, so that a one carat diamond of a good cut should measure about 6.3-6.5 millimeters in diameter and so on.

It is important to know that when asking for a certain carat weight, you are buying a weight unit and not size, because what determines the size ultimately is only the Cut, or proportions of a diamond. A diamond cut too shallow will have a larger look. A diamond cut too deep will have a smaller look, a smaller size. But both will weigh the same.

Now that you have the knowledge to make an informed decision, please feel free to use our Online Request Form to find the diamond that will be perfect for you. Or you can call us toll-free 1-800-845-8752.