Gold Electroplate - An electrolytic coating with gold, or with an alloy of not less than 10% fineness to a minimum thickness throughout that is equivalent to seven millionths of an inch. This means that where the fineness is less than 24Kt, the thickness must be proportionately greater, so that the same amount of fine gold is seven millionths of an inch, it may be marked as heavy gold electroplate.
Gold-filled (GF) - A gold alloy plate made by soldering, brazing, welding or other means that is not less than 10Kt fineness, where the plating constitutes at least 1/20th of the weight of the metal in the entire article. The term must be preceded by the karat fineness of the plating, such as 14Kt Gold-Filled. When using the term gold overlay, manufacturers are permitted to use a layer of gold that is less than 1/20th the weight of the entire piece, but they must stamp the proportion of the gold layer on the jewelry.
Granulation - The intricate ball patterns are created through a process called granulation. Tiny uniform ball shapes are fashioned into precision patterns, heat fused onto the surface, then carefully antiqued and polished, creating a visual masterpiece.
Grip Length - The depth of the grip range of an ice-pick bail. The grip length measures the distance of a stringing hole from the edge of a drilled focal, so a flat round with a hole 5mm from the edge will require a bail with a grip length of 5mm or more.
Gunmetal - finishes have a neutral grey background with bluish or purplish tinges, sometimes referred to as "black chrome." Its name derives from a particular alloy of copper, bronze and zinc, which was originally used in gunmaking, though many alloys currently use the gunmetal designation as it is currently based on appearance. The original alloy (also known as "red brass," patinaed over time to a near-black shade of grey. Gunmetal alloy is resistant to corrosion from steam and salt water. There are many alloys called "gunmetal."