The number 585 is stamped on European gold jewelry to indicate that the jewelry contains 58.5 percent gold. This is comparable to the U.S. 14K marking that indicates that a piece contains 14 parts gold and 10 parts of on... More »

A 14K ring that is stamped .585 indicates that 58.5 percent of the ring's content is pure gold. According to Diamond Jewelers, the remaining 41.5 percent is a metal alloy, which is a stronger metal mixed with the gold to... More »

The numbers 750 stamped on jewelry means that it is 18-karat gold. The jewelry piece is 18 parts pure gold and six parts metal alloy. More »

The number 925 stamped on a gold piece of jewelry usually means that the jewelry is not entirely gold; it is sterling silver that has been gold plated. The number normally indicates the purity of the silver used, not the... More »

Gold jewelry is popularly hallmarked with a three-digit number or a number followed by the letter "K." These numbers mark the fineness of the gold or its karat, respectively. More »

In addition to standard gold purity markings such as 10K, 14K and so on, real gold jewelry is often stamped with a three-digit code. These codes correlate to the purity of the gold within the piece. Gold marked with the ... More »

One can clean gold jewelry at home with everyday materials, including a toothbrush, dish detergent and water. The overall process is simple and only takes 15 minutes. More »