Hard gold is better, and the manufacturing process is relatively complicated, so the price is more expensive than soft gold. The fineness of hard gold and soft gold is the same, but hard gold has undergone a special process of hardening, and it becomes ordinary gold when it meets fire. Because the technology is different, the price will be more expensive.

1. Hard gold actually refers to physical gold, but it is "hard" gold made by a new method. Its texture is harder than ordinary gold. Also known as "thousands of feet Hard Gold". "3D hard gold" jewelry is a new product which breaks the traditional craft and mainly focuses on electroforming. The gold content of 3D hard pure gold is 99.9%, which is consistent with the purity of ordinary pure gold 999.

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2. Soft gold is high-purity gold, and hard gold is synthetic gold mixed with other metals, usually copper. Pure gold is too soft to be inlaid. The ionization potential of gold is very high, so it is difficult to lose the outer electrons and turn them into positive ions, and it is also difficult to accept that electrons turn into anions. Its chemical properties are stable and its affinity with other elements is weak. Therefore, in nature, it mostly exists in the form of simple substance, that is, natural gold.

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Gold with different hardness has different uses and places. Pure gold is generally soft, and it is better to make gold bars, ingots or pure gold jewelry. K-gold has high hardness, which is more reliable for inlay and can also be used to process jewelry with complex styles. In addition, due to the addition of other metals, K gold can present many different colors, so it has a strong sense of fashion.