The imprint "18k HGE" on gold essentially means that the gold is costume jewelry with little or no value. "HGE" stands for "hard gold electroplated," which means the object is not solid 18 karat gold throughout. "18k" refers to the type of plating used on the outer surface of the object.Continue Reading
Pure gold is 24 karats, or 24k. Therefore, 18 karat or 18k gold is 75 percent pure gold. However, if something has “HGE” stamped on it, it means that the object is made of a less valuable metal, such as copper, with a thin layer of gold on the surface to make it look like it’s made of solid gold. It’s only the thin layer on the surface of the object that has the 18-karat density. Electrochemical processes are used to bind the gold to other metals.
Gold plate is often used in costumes to save costs. It’s difficult to tell whether something is made of pure gold just by looking at it from a distance, so gold plating can be a good substitute. The gold plating also means that high percentages of gold, such as 18 karat, are used with gold plating at a cheaper cost when compared to a much lower karat that is solid gold.Learn more about Precious Metals & Gems
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 numbers 825 has a purity rating of about 19K.Full Answer >
To date gold, it is necessary to check the hallmark on the piece of jewelry or gold item. The date is shown by a letter in the hallmark, so some research is needed in order to link the letter to a date. A cleaning cloth and a magnifying glass are needed to undertake the dating process.Full Answer >
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.Full Answer >
A "925" stamp on a piece of gold jewelry usually has no relationship with the gold but with the silver underneath. A "925" stamp on silver denotes a 925/1000 part purity, or a sample of silver that's 92.5 percent pure.Full Answer >