Precious metals have many markings. Normally, you will see the maker’s mark stamped inside a ring or bracelet or on the back of a piece of jewelry. You will also see the hallmark of the type of metal; this distinguishes the characteristic or trait specific to your piece.
Gold comes in many different weights, with 24 karat being the highest. The higher the karat, the higher the gold content, the more yellow in color, and the heavier the weight.
24 Karat – 24k, 24kt, pure gold, not mixed with any alloys. 22 Karat – 22k, 22kt, a mix of 91.7% gold and 8.3% other alloys. 18 Karat – 18k, 18kt, a mix of 75% gold and 24% other alloys. 14 Karat – 14k, 14kt, a mix of 58.5% gold and 42.5% other alloys. 10 Karat – 10k, 10kt, a mix of 41.7% gold and 58.3% other alloys.