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Fineness vs Carat - What's the difference?

fineness | carat |

As nouns the difference between fineness and carat

is that fineness is the ratio, in a precious metal, of the primary metal to any additives or impurities while carat is a unit of weight for precious stones and pearls, equivalent to 200 milligrams.

fineness

English

Noun

(-)
  • The ratio, in a precious metal, of the primary metal to any additives or impurities.
  • The ratio of a ship's length to her beam.
  • carat

    English

    Alternative forms

    * (unit of purity) karat (North America)

    Noun

    (en noun)
  • A unit of weight for precious stones and pearls, equivalent to 200 milligrams.
  • Formerly, any of several units of weight, varying from 189 to 212 mg, the weight of a carob seed.
  • A measure of the purity of gold, pure gold being 24 carats.