How much does one carat weigh in grams?

One carat is defined as exactly 0.2 grams. This standardized measurement is crucial in the diamond and gemstone industry, as it allows for consistency and accuracy in weighing these precious stones. The term "carat" originates from the carob seeds historically used to balance scales used by jewelers. By understanding that one carat equals 0.2 grams, industry professionals can better evaluate the worth of diamonds and other gemstones, as weight is a significant factor in determining value. This understanding is essential for both gemologists and consumers when assessing the size and quality of a diamond.