Antique Gold Necklaces Is There Any Way To Make A Gold Necklace Look 'antique Gold'?

Is there any way to make a gold necklace look 'antique gold'? - antique gold necklaces

is pure gold, but the tone of gold, to be shiny and bright. I wonder if I can make the oldest gold somehow .. a product or method, I have no idea. Thank you. :)