K gold will not fade, it contains 75% gold and inherits the golden color. However, a layer of rhodium will be added to the outer layer of K-gold, which will become dull after oxidation when it comes into contact with air. Moreover, other metals contained in K gold are not as stable as gold. Sweat acid in sweat will corrode the electroplated layer of K gold and change its color.

K-gold does not fade. K-gold is an alloy, which is usually made of 75% gold and 25% other metals. It is solid and inherits the characteristics of gold, and its color will not change in general.

However, when making jewelry, K gold usually adds a layer of rhodium. Although this rhodium layer can make the luster of K-gold jewelry bright and gorgeous, the rhodium layer will be oxidized when it comes into contact with air for a long time, which will make its surface dull.

In addition, long-term wear will also make K gold fade, because K gold contains other metals, and the stability of other metals is not as strong as gold. K-gold is in contact with sweat in the skin for a long time, and the sweat acid in the sweat will corrode the electroplated layer of K-gold and change the color of K-gold.