Markings on a ring that indicate "14k HGE" mean the ring contains 14-karat gold in "heavy gold electroplate," which indicates that the gold is not pure or solid gold but is a covering for some other metal. Normally, this layer of gold has a thickness between 7 and 100 millionths of an inch. Gold that is not marked with HGE can be tested electronically to discover its purity.Know More
Gold electroplate is normally 10 millionths of an inch thick, and the layer wears off easily over time. This type of jewelry looks tarnished once the base metal is exposed. Hannon Jewelers explains that heavy gold electroplate reaches a maximum thickness of 100 millionths of an inch on top of base metal.
Rings electroplated with gold are not worth much to businesses that buy scrap, according to MintProducts. Rings marked "gold plated" or "gold filled" are the same as those that use heavy gold electroplate.
Electroplating is a process by which metals are bathed in a solution of the metal that covers the core object. The core metal is exposed to an electrical current, and the covering metal falls out of solution to gather around the electrolyzed core. The longer the core metal stays in the bath of gold ions, the thicker the gold covering gets.Learn More
The ever-changing colors of a mood ring represent the wearer's mood at any given moment. For instance, blue represents a feeling of calm, and black represents severe stress and tension. Mood rings are designed with liquid crystal that changes color when the body temperature is raised or lowered, similar to a liquid crystal thermometer.Full Answer >
A purple stone on a mood ring indicates that the wearer is in a particularly happy or romantic mood. A purple mood ring color is associated with love and passion.Full Answer >
The stamp inside a ring, bracelet or other piece of jewelry is used by the manufacturer to indicate the manufacturer's or designer's name, the metal purity and type. Called hallmarks or assay marks, there are a very large number but in terms of valuation, the most important deal with metal type and purity.Full Answer >
When stamped into silver, 925 commonly indicates the object is made of sterling silver. The stamp gives information about the metal composition, time and the item's country of origin. Sterling silver is generally composed of 92.5 percent silver, hence 925.Full Answer >