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1. A way of measuring the mass of a gem. One karat is 200 milligrams.

2. A way of measuring the purity of gold or platinum. One karat is 1/24 purity; that is, 24 karat gold is pure gold.

In both cases, karat can also be spelled carat.


A measure of the purity of gold. Pure gold is indicated by the label 24 karat. See also fineness.
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300 carats of diamonds were recovered from a bulk sampling programme of
com), the world's leading retailer of Pink Emeralds announced today the sale of an extremely rare and important precious gemstone, the "World's Largest Heart-Shaped Pink Emerald" weighing a whopping 169 carats.
It's great to see a top agency like Carat Fusion take a leadership role in helping their clients tackle the problem of click fraud," said Tom Cuthbert, president and CEO of Click Forensics.
Emily Blunt - Lorraine Schwartz - Brown and White Diamond Earrings, 30 carats
5 to 10 carat range showed an increase of at least 10% above the previous sales.
Ashton" or the "Corporation") (TSX:ACA) is pleased to report an estimated diamond content of 114 carats per hundred tonnes ("cpht") for 12.
NEW YORK, April 17 /PRNewswire/ -- Digital marketing agency Carat Fusion has expanded its search marketing practice by hiring Randy Schwartz as its new Director of Search Engine Marketing in the New York office.
98 carat per tonne averaging $68 (US) per carat and a smaller parcel of 42.
8 /PRNewswire/ -- Digital marketing agency Carat Fusion has reorganized its West Coast senior management team through a series of promotions designed to give the agency even deeper strategic client relations and operational capabilities for 2007.
5 carats, with a significant portion of stones falling in the one to three carat range, with the average stone size 1.