Diamond Carat

Diamonds, like any other gemstones, are traded based on their weight or size. The unit of measurement used to describe a gem's weight is carats. A carat is equal to 0.20 of a gram or in other words five carats equals one-gram. A carat is further subdivided into points, like pennies in a dollar. A carat has 100 points. A three-quarter carat diamond equals 75 points or 0.75 of a carat. The larger the diamond, the rarer and more valuable it is.

Read more about the 4Cs: Cut | Clarity | Color | Carat | Certification