金メッキ
The process of creating gold plated pieces entails bonding a thin gold layer over cheaper base materials like brass or copper.
With these pieces, gold content is less than 1%. Their main drawback is that the thin gold layer wears off quickly. On top of that, they might turn your skin green with the brass or copper ベースメタル.
Because of the expensive nature of gold jewelry, goldsmiths came up with an affordable option in gold plated jewelry. With it, you are able to enjoy the outward appearance of gold at a pocket-friendly price. Telling the difference between the two is almost impossible.
注記: Gold plated jewelry is the cheapest option. しかし, it does not last long.