Ashford & Grace Fine Jewelry

What is carat?

A carat is the standard unit of weight used for all diamonds and gemstones. One carat is equal to 0.2 grams. Furthermore, a carat is divided into a hundred points. For example, 50-point diamond weights 0.5 carats. Larger diamonds are described as using decimal places (e.g. 1.08 carats). Seemingly small differences in the carat weight of a diamond can have a great impact on the cost. Therefore, jewelers will often measure down to the hundred thousandth of a carat then round to the nearest hundredth of a carat. (N.B Carat and Karat are two very different things. The former is for stones while the latter measures gold purity.)


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