Because the technology is different, the production process of general fine products takes a lot of time and energy, so more processing fees will be charged.

In addition to the price of gold, the price of gold jewelry also includes the labor cost of gold and the operating cost of merchants. The raw gold price of gold jewelry before processing is also different, because the gold content is less than 100%, so it will contain other metals. In addition, there will be losses during processing, which also needs to be considered.

However, the gold content in jewelry is not 100%. The 999 gold and 9999 gold ornaments, which are collectively called pure gold, still contain a very small amount of metals such as silver and copper. When it comes into contact with substances containing mercury and lead, the surface of gold ornaments will be oxidized, which will make the surface of gold lose its luster and produce symptoms such as whitening, erythema and even blackening. In this case, the oxidation needs to be burned off.