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

 

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.

carat

[′kar·ət]
(lapidary)
A unit of weight of gemstones, equal to 200 milligrams. Also known as metric carat.
References in periodicals archive ?
Mariah Carey - Chopard - Fancy-shape Diamond Bracelet, 60 carats in platinum
At prices of about US$1,000 per carat and monthly production of 2,400 carats, the Company is cash flow positive, and as prices improve further Rockwell will return to profitability.
85 carat diamond and cultured pearl dangle earrings will make a major statement on the red carpet.
Items featured in the photographs are: A four carat pear- shaped diamond solitaire pendant with an 18-carat white gold chain.
Table 2 below presents models of the average price per carat (US$/carat) for each kimberlite lithology.
6 carat diamond which yielded a fancy vivid blue and internally flawless 7.
up to 100 carats in size even in the early stages of production.
A revised estimate of the resource at Mandala following the bulk sampling indicates some 535,162 carats of diamonds contained in 1,157,369 m3 of gravel.
In addition to calculating the modeled value of the parcel, WWW valued the 459 carats based on the price that a producer would receive in Antwerp at current diamond prices.
Four of these bodies, Renard 2, 3, 4 and 65, were the subject of a 664 tonne bulk sample program in 2004 that yielded 457 carats of diamonds.
1 yielded 3,755 carats from a total of 11,175 diamonds, of which the largest was a 25 carat stone.