![]() While now you know what carat means, it’s also important to remember that a diamond’s value is determined using all of the 4Cs, and not just carat weight. For example, a 50-point diamond weighs 0.50 carats. A 1ct round brilliant-cut diamond is usually about 6.5mm in diameter, but this can vary slightly depending on the way it is cut. Just as a dollar is divided into 100 pennies, a carat is divided into 100 points. However, two diamonds of equal carat weight can have very different values (and prices) depending on three other factors of the diamond 4Cs: Color, Clarity, and Cut. One carat, in industry terms, is equal to 0.2 (one fifth) of a gram. ![]() ![]() A 1.08 carat stone would be described as ‘one point oh eight carats.’Īll else being equal, diamond price increases with diamond carat weight because larger diamonds are rarer and more desirable. For instance, the jeweler may refer to a diamond that weighs 0.25 carats as a ‘twenty-five pointer.’ Diamond weights greater than one carat are expressed in carats and decimals. A jeweler may describe the weight of a diamond below one carat by its ‘points’ alone. Each carat is subdivided into 100 ‘points.’ This allows very precise measurements to the hundredth decimal place. Just as a dollar is divided into 100 pennies, a carat is divided into 100 points. A larger carat diamond with a poor cut grade can appear smaller than a diamond of the same size with a higher cut grade. It is important to consider the carat and cut together when making a purchase. To put it simply, diamond carat weight measures how much a diamond weighs.Ī metric “carat” is defined as 200 milligrams. One carat is equal to 0.2 grams and one diamond carat is divided into 100 points, meaning that 0.25 of a carat is 25 points or ¼ carat. ![]()
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