GREEN GOLD ALLOY FOR JEWELRY HAVING LOW GOLD CONTENT

摘要

Precious metal green gold alloy according to an embodiment of the present invention, in the green gold alloy for precious metals, 30% to 45% by weight of gold (Au), 24% to 26% by weight of copper (Cu) and , 3 wt% to 5 wt% of indium (In) and the balance silver (Ag); by using a metal that is not harmful to the human body, while reducing the amount of gold to the maximum possible implementation of green gold It is possible to produce green gold precious metals with a level of durability similar to gold alloys having the same gold content.