Key Facts About Carat Weight:
Definition
One carat is equal to 200 milligrams (0.2 grams).
It is subdivided into 100 points, meaning a 0.50-carat diamond is also called a 50-point diamond.
Origin of the Term
The term “carat” comes from the carob seed, which was historically used as a reference for weighing gemstones due to its uniform weight.
Carat vs. Size
While carat refers to weight, it does not always indicate a diamond’s physical size.
Different cuts and shapes can make a diamond appear larger or smaller than another of the same weight.
Impact on Price
Diamond prices increase significantly with carat weight, especially at milestone sizes (e.g., 0.50 ct, 1.00 ct, 1.50 ct, 2.00 ct).
Larger diamonds are rarer and more expensive per carat than smaller ones.
Carat Weight vs. Other Cs
A diamond’s cut, colour, and clarity also play a major role in its overall value and appearance.
A well-cut 0.90-carat diamond can appear nearly the same size as a 1.00-carat diamond but at a lower cost.