75% of the precious metals in 18K are gold and 25% are other metals. As we know, pure gold is very soft, and it is not suitable for jewelry modeling and setting gems. 18K gold added with other metals not only has the same valuable value as gold, but also has the advantages of strong ductility, high hardness and changeable color due to its perfect composition ratio. When used in jewelry design, it is not only colorful, but also firm in structure, which can give full play to complex and exquisite creative expression and realize various shapes. Therefore, 18K gold is widely used in contemporary jewelry and is very popular.
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