Gold Alloys – What is a Carat?
A Carat is 1/24th By Weight Don’t confuse the word “carat” as used for diamonds or other gemstones, when it is a unit of weight. A carat as applied to gold alloys means a proportion by weight of one part in twenty-four, or 41.66 parts per 1000. The higher the carat value, the higher the proportion of gold in relation to the base metal content. Pure gold is therefore 24 carat.