Yellow Gold (22K)

Gold 91.67%

Silver 5%

Copper 2%

Zinc 1.33%

Red Gold (18K)

Gold 75%

Copper 25%

Rose Gold (18K)

Gold 75%

Copper 22.25%

Silver 2.75%

Pink Gold (18K)

Gold 75%

Copper 20%

Silver 5%

White Gold (18K)

Gold 75%

Platinum or Palladium 25%

White Gold (18K)

Gold 75%

Palladium 10%

Nickel 10%

Zinc 5%

Gray-White Gold (18K)

Gold 75%

Iron 17%

Copper 8%

Soft Green Gold (18K)

Gold 75%

Silver 25%

Light Green Gold (18K)

 Gold 75%

Copper 23%

Cadmium 2%

Green Gold (18K)

Gold 75%

Silver 20%

Copper 5%

Deep Green Gold (18K)

Gold 75%

Silver 15%

Copper 6%

Cadmium 4%

Blue-White or Blue Gold (18K)

Gold 75%

Iron 25%

Purple Gold

Gold 80%

Aluminum 20%