An 'international carat' of 205 milligrams was proposed in 1871 by the Syndical Chamber of Jewellers, etc., in Paris, and accepted in 1877 by the Syndical Chamber of Diamond …

CARAT definition: 1. a unit for measuring the weight of jewels (= precious stones) 2. a unit for measuring how pure…. Learn more.

Dec 6, 2016 · Precious stones are weighed in carats; a single carat is equal to 200 milligrams. Carat is also a variant spelling of karat, which measures the purity (but not the weight) of gold.

carat, unit of weight for diamonds and certain other precious gems. Before 1913 the weight of a carat varied in different gem centres.

A carat is a unit of weight used to measure gemstones and pearls. One carat equals 200 milligrams or 0.2 grams. The heavier the stone, the higher its carat weight. Important note: …

Carat measures weight, not size. A carat is a standard milligram measurement of weight, recognized and used globally.

Aug 4, 2025 · A carat is a unit of mass and weight used to measure gemstones and pearls, most notably diamonds. One carat is precisely equivalent to 200 milligrams (.2 grams).

Carat denotes the weight of a diamond, not the size. A diamond may have a higher carat weight without appearing larger; and two diamonds of the same carat weight can vary in size if one is …

CARAT definition: a unit of weight in gemstones, 200 milligrams (about 3 grains of troy or avoirdupois weight). c., ct. See examples of carat used in a sentence.

What Is Diamond Carat Weight? Diamond carat weight just means how heavy your diamond is. One carat weighs exactly 0.2 grams. That’s tiny, like a single paperclip. But in diamond terms, …