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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 what’s the difference? - jewelersmutual. com
    A carat is the unit used when measuring the weight of a gemstone, such as diamonds, rubies, sapphires and emeralds Specifically, the weight of a carat is equal to 200 milligrams, or 0 2 grams
  • Carat vs. Karat: Whats The Difference? | Merriam-Webster
    In the jewelry world, 'carat' typically describes a unit for weighing precious stones, while 'karat' refers to the amount of gold in a piece Learn about the tree the words come from by reading more
  • Carat Global Media Marketing Agency | Carat
    We're Carat, the #1 Global Media Network Present in 100 countries delivering marketing strategies Explore our services, culture, leadership more
  • What are Carats? | Diamond Carat Explained | GoldFellow
    Carats are a metric unit of weight used in the weighing of diamonds and other gemstones One carat weighs 2 grams The term carat is derived from the seed of the carob tree – a tree which flourished in the Mediterranean region and whose seeds were used in gem trade
  • Diamond Carat Size Chart: How Big Is Each Carat on Your Hand?
    How big does each diamond carat size actually look? See real size comparisons from 0 5 to 5 carats, learn what affects perceived size, and understand how carat weight drives value





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