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noun

carat

KA-ruht

Carat (noun) means a unit of mass used to weigh gemstones, equal to exactly 200 milligrams. Example: “The engagement ring featured a two-carat diamond.”

noun
1
A unit of mass used to weigh gemstones, equal to exactly 200 milligrams.
"The engagement ring featured a two-carat diamond."
2
A scale of 24 parts used to measure the purity of gold.
"The necklace was made from 18-carat gold."

How to use carat

Learner’s notes
Common mistake

Don't confuse "carat" (weight of a gemstone or gold purity) with "karat," the American spelling used specifically for gold purity, or "carrot," the vegetable.

Easily confused with
karat carrot
Common pairings
a one-carat diamond 24-carat gold

Word forms

carats plural

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Fill the gap

Can you complete this real example?

The engagement ring featured a two-_____ diamond.

Etymology

From Arabic qirat, "small unit of weight," ultimately from Greek keration, "little horn" or "carob seed" — carob seeds were once used as a natural, fairly consistent weight for measuring gems.

Origin: Arabic

kt karat

Rhymes for carat

See all rhymes for carat →

Frequently asked questions

What does “carat” mean?

The word “carat” means a unit of mass used to weigh gemstones, equal to exactly 200 milligrams.

How do you pronounce “carat”?

“Carat” is pronounced KA-ruht (/ˈkæ.ɹət/ in IPA).

How do you use “carat” in a sentence?

Here is “carat” used in a sentence: “The engagement ring featured a two-carat diamond.”

What part of speech is “carat”?

“Carat” is a noun.

Where does the word “carat” come from?

The word “carat” comes from Arabic. From Arabic qirat, "small unit of weight," ultimately from Greek keration, "little horn" or "carob seed" — carob seeds were once used as a natural, fairly consistent weight for measuring gems.

How many meanings does “carat” have?

“Carat” has 2 distinct senses listed in this dictionary. The most common is: a unit of mass used to weigh gemstones, equal to exactly 200 milligrams.

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