Extended data:
The composition of rose gold is pure gold+copper+silver/zinc. Because of its moderate synthesis ratio, it has the characteristics of strong ductility, high hardness and changeable color, and it is fused with 25% other metals, so it has high hardness and is not easy to be deformed or scratched. It can be used in precise and exquisite gold ornaments design, which can give full play to complex and exquisite design creativity.
75% gold +22.25% copper +2.75% silver can be mixed to get rose gold. Different proportions between the three can bring out different colors, which is the same as color adjustment in painting.
References:
Baidu encyclopedia-rose gold