The Gold Cross Earrings are made with 10 kt Gold accented with 12 kt Gold and 14 kt Gold post and backs and some with Diamonds. The Sterling Silver Cross Earrings are made with Sterling Silver accented with 12 kt Gold. The Sterling Silver Earrings Have Surgical Steel post. The Pendants are made with 10 kt Gold and 12 kt Gold. The Sterling Silver Pendants are made with Sterling Silver and 12kt Gold. Gold Pendants come with a complementary 18 inch 12/20 Gold filled chain. The Sterling Silver Pendants comes with a complementary 18 inch Sterling Sliver Chain.