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Carat

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carat
1. a measure of the weight of precious stones, esp diamonds. It was formerly defined as 3.17 grains, but the international carat is now standardized as 0.20 grams
2. a measure of the proportion of gold in an alloy, expressed as the number of parts of gold in 24 parts of the alloy
carat [′kar·ət]
(lapidary)
A unit of weight of gemstones, equal to 200 milligrams. Also known as metric carat.
Carat 

a unit of weight, abbreviated kar. in Russian and ct internationally, which is used in the jewelry trade for measuring the weight of precious stones and pearls. The carat is used in a number of countries to indicate the purity of precious metal alloys. The metric carat, which was established by the fourth General Conference on Weights and Measures (Paris, 1907) and adopted in the USSR in 1922, is equivalent to 200 mg (exactly) or 2 X 104 kg.
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We've hit the trail together afore now, and he's eighteen carat from his moccasins up, damn his mangy old hide, anyway.
Burning Daylight by London, Jack View in context
The furniture of the narrow chamber of death we had just visited weighed six millions of francs in ounces and carats alone, without a penny thrown into the account for the costly workmanship bestowed upon them
The Innocents Abroad by Twain, Mark View in context
As for the third chest, it was only about a fourth full, but the stones were all picked ones; none less than twenty carats, and some of them as large as pigeon-eggs.
King Solomon's Mines by Haggard, Rider H. View in context
 
 
 
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