How To Read The Gold Karat System?

This is the karat system, pure gold is expressed as “24 karats fine” (24K). (Pure gold in commercial practice is 99.95 to fine, but is technically considered 100%.) Even pure gold is not perfect, isn’t that interesting? The gold content of any gold article depends on the proportion of pure gold it contains. The most popular types that are used in jewelry in the United States are:

24 K 100% Gold (99.95 %)
18 K 75% Gold
14 K 58.33% Gold
10 K 41.67% Gold