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carat    音标拼音: [k'ɛrət]
n. 克拉

克拉

carat
n 1: a unit of weight for precious stones = 200 mg
2: the unit of measurement for the proportion of gold in an
alloy; 18-karat gold is 75% gold; 24-karat gold is pure gold
[synonym: {karat}, {carat}, {kt}]

Carat \Car"at\ (k[a^]r"[a^]t), n. [F. carat (cf. It. carato,
OPg. quirate, Pg. & Sp. quilate), Ar. q[imac]r[=a]t bean or
pea shell, a weight of four grains, a carat, fr. Gr.
kera`tion a little horn, the fruit of the carob tree, a
weight, a carat. See {Horn}.]
1. The weight by which precious stones and pearls are
weighed.
[1913 Webster]

Note: The carat equals three and one fifth grains Troy, and
is divided into four grains, sometimes called carat
grains. Diamonds and other precious stones are
estimated by carats and fractions of carats, and
pearls, usually, by carat grains. --Tiffany.
[1913 Webster]

2. A twenty-fourth part; -- a term used in estimating the
proportionate fineness of gold.
[1913 Webster]

Note: A mass of metal is said to be so many carats fine,
according to the number of twenty-fourths of pure gold
which it contains; as, 22 carats fine (goldsmith's
standard) = 22 parts of gold, 1 of copper, and 1 of
silver.
[1913 Webster]


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  • Carat (mass) - Wikipedia
    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 Merchants in Paris
  • CARAT Definition Meaning - Merriam-Webster
    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
  • What Is a Carat? Jewelry’s Most Misunderstood Term
    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 weight is not the same as gemstone size
  • Carat vs Karat - Whats the Difference and Why It Matters
    When comparing Carat vs Karat, remember that carat relates to diamond weight, while karat reflects the gold’s purity in your jewelry The karat of gold jewelry directly affects its price, with higher karat pieces being more expensive due to the higher amount of gold
  • CARAT | English meaning - Cambridge Dictionary
    CARAT definition: 1 a unit for measuring the weight of jewels (= precious stones) 2 a unit for measuring how pure… Learn more
  • What is a carat? How many carats are in gold and in diamond?
    In relation to gold and other metals, a “carat” has a completely different meaning The Karat or Carat system measures metal purity as a fraction It tells you how many parts (of a total of 24) are pure 9-carat gold is the minimum accepted standard of gold in the UK, and 24 carat is the purest gold
  • Karat vs. Carat – Whats The Difference? | Dictionary. com
    In the context of gemstones, and especially diamonds, carat refers to the weight of the stone A carat is equivalent to 20 grams In some systems, the weight of a diamond is divided into 100 points, with 100 points equaling one carat
  • What Is a Carat? Understanding Gem Weight Measurement
    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)
  • Karat vs Carat - Difference Between Karats and Carats
    One carat equals 200 milligrams or 0 2 grams To put this into perspective, a pound is 453 grams or 2264 carats A 2-carat diamond weighs 400 mg Gemstones have different densities, so 1 carat of one stone might be larger or smaller in volume than 1 carat of another material
  • Carat | Weight, Measurement, Jewelry | Britannica
    carat, unit of weight for diamonds and certain other precious gems Before 1913 the weight of a carat varied in different gem centres





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