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What is the difference between Thousand Pure Gold, 24K Gold and 18K Gold?

by:Joacii     2021-03-17
Each open (short for English carat, German karat, often written as k) contains 4.166% gold, 18ku003d18*4.166%u003d74.998%, 24ku003d24*4.166%u003d99.984% 24K contains 99% gold, 22K contains 91. 7%, 18K contains 75.1%, 14K contains 58.5%, 12K contains 5 per open (English carat, German karat abbreviation, often written as k) gold content is 4.166%, 18ku003d18*4.166%u003d74.998% , 24ku003d24*4.166%u003d99.984% 24k contains 99% gold, 22k contains 91.7%, 18k contains 75.1%, 14k contains 58.5%, and 12k contains 50%. The gold jewelry currently sold on the market is divided into pure gold and k gold jewelry. According to the national standard gb11887, the content of several common gold jewelry is: 24k. At present, the market occasionally marks 24k gold jewelry. According to the national standard, 24k The theoretical value of gold content should be 100%, and gold is not barefoot. Therefore, strictly speaking, 24k does not exist. It is incorrect to mark 24k gold in sales and does not meet national standards. Thousands of pure gold content is 99.9%, commonly known as three 9s. The pure gold content is 99.0%, above, commonly known as two 9s. The 18k content is 75.0%. There are many colors of karat gold, usually yellow, red, and white. Among them, white k gold is actually an alloy of gold and nickel, zinc, copper and other elements. It is not the so-called platinum jewelry. Platinum refers to the precious metal platinum (pt) Previous: How to calculate the gold content of K gold Next: 18K gold maintenance instructions
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