Carat weight is the standard mass unit for diamonds and other gemstones. The word
“carat” comes from the old Greek word for the seed of a carob tree, “kerátion” (κερατιον).
It is important to note the difference between Carat – denoting the weight of gemstones;
and Karat – denoting the purity of gold alloys.
One metric carat is equal to 200 mg (0.2 g or 0.007055 oz.). In order to improve
accuracy, we divide the carat to 100 points. For example, a diamond of 55 points
weighs 0.55 carats.
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