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A carat is a unit of mass used to measure gemstones and pearls. One carat is equivalent to 200 milligrams (0.2 grams). The term originated from the carob seeds that were historically used as a balance scale to weigh gemstones. The carat measurement is important in the jewelry industry, as the weight of a gemstone significantly affects its value.

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  1. Metricated units
  2. Units of measurement
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