Gold plated jewelry
Gold plating is the term used to describe the process of plating jewelry made of non-precious base metal (zinc, nickel, copper) with a thin layer of gold, which is depositing their by electrochemical methods. As it was said the layer is very thin and thus easy to scratch. It also naturally wears thin with time, exposing the metal below. So it is better not to wear gold plated jewelry every day.
Pros: Low price
Cons: The gold film wears off pretty soon because of polishing and exposure to skin salts
Gold filled jewelry
Gold filled jewelry (also called ‘gold overlay’ or ‘rolled gold plated’) consists of several mechanically bonded layers. A non-precious base is covered with the outside layer of at least 10 Karat gold
. Manufacturers usually mark their gold filled jewelry with fractions that show the relative amount of gold in proportion to base metal in a given piece, so you know what you buy. So decide what your priority is, the price or durability. If you want to wear the jewelry pretty often, opt for gold filled pieces.
Pros: This alternative has the longest lifespan of all the three.
Cons: The price of gold filled jewelry is usually higher than that of the previous alternativehttp://www.gildenscript.com/filled.htm
Gold Filled: Gold filled is an actual layer of gold-pressure bonded to another metal. Gold filled is not to be confused with gold plating as filled literally has 100% more gold than gold plating. Gold filled is much more valuable and tarnish resistant. It does not flake off, rub off or turn colors. As a matter of fact, anyone who can wear gold can wear gold filled without worries of any allergic reaction to the jewelry. Gold filled jewelry is an economical alternative to solid gold!