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a carat (abbreviated "ct.") and spelled with a "c" is a measure of weight used for gemstones. One carat is equal to 1/5 of a gram (200 milligrams). Stones are measured to the nearest hundredth of a carat. A hundredth of a carat is also called a point. Thus a 0.10 carat stone can be called either 10 points, or 1/10 of a carat. Small stones like 0.05, and 0.10 ct are most often referred to by point designations.

A one carat round diamond of average proportions is approximately 6.5mm in diameter. Note that this relationship of weight and size is different for each family of stones. For example ruby and sapphire are both heavier than diamond (technically, they have a higher specific gravity, so a 1 carat ruby or sapphire is smaller in size than a on carat diamond.

Note that karat with a "K" is a measure of the purity of a gold alloy.

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Related Questions

What is 22 k HGE?

22 karat Heavy Gold Electroplate


What does the jewelry marking 18KTHGF mean?

14 Karat Heavy Gold Filled(plated).


What is 14K TGE?

Perhaps it's 14KT GE which means 14 Karat Gold Electroplate or it could be 14K HGE which means 14 Karat Heavy Gold Electroplate


What does 18 K HG mean on a ring?

18K HG on a ring likely stands for 18 karat heavy gold, indicating that the ring is made of 18 karat gold and is heavier than normal.


If a gold ring says 18k hgf what does it mean?

18 karat heavy gold filled Cant sell for scrap


How pure is 32 karat?

24 karat is pure gold. 32 karat is impossible.


What is better 14 karat or 18 karat?

You welcom in our chain channel/UCG3eqvBIQA202k1j1mnYBXQ


What is 18 karat hgea mean?

HGEA probably means heavy gold electronically applied. In other words, the piece is gold plated, not solid gold.


What does 750 mean on gold ring?

Karat - The karat (symbol kt) a unit of measure of the amount of pure gold in a metal. One karat represents 1/24th of an alloy's total weight. One hundred percent gold is 24 karats.24-karat gold = .995 to .9999922-karat gold = .91618-karat gold = .75014-karat gold = .58310-karat gold = .4167


What counrty is the city of Karat in?

the city of Karat is in India.


Can you make 22 karat gold into 24 karat gold?

Yes you can make 22 karat gild into 24 karat by melting the 22 karat and then remove the impurity - which would most likely be copper. This means you would have about 91.6% of 24 karat gold and 8.4% copper from the original weight of 22 karat gold


What are the percentages of gold in the different karat weights of gold jewelry?

24 karat gold is 100% gold, 18 karat gold is 75% gold, 14 karat gold is 58.3% gold, and 10 karat gold is 41.7% gold. The remaining percentage in each karat weight consists of other metals like silver, copper, and zinc, which are added to improve the durability and color of the gold.