January 19, 2007 10:50pm CST
Carat weight is for precious stones.A carat has different weights at different places. 1 carat(metric) = 3.086 grains = 0.200 or 1/5 gram = 200 milligrams The term carat is also used to express the fineness of gold,each carat meaning a twenty-fourth part.Pure gold or fine gold is described as "24-carat fine". Standard gold is "22-carat fine" since it contains 22 parts of pure gold out of 24.
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