One involves a substantial layer of gold mechanically bonded to a base metal. The other utilizes a very thin coating of gold deposited onto a substrate through electroplating. Understanding the difference is crucial when evaluating jewelry or other items for value and durability.
The primary importance lies in the varying amounts of actual gold content, which dictates the item’s resistance to wear and tarnish, and, subsequently, its long-term value. The former offers a higher gold content and greater longevity, often providing a more cost-effective solution over time compared to the latter, which can easily wear away, exposing the base metal.