Sterling Silver Blue and White Diamond Twist Earrings and Pendant Necklace Box Jewelry Set Necklace: Length: 18 inches, Width of Pendant: 0.5 inches. Length of Pendant: 1.2 inches Earring: Height: 1 inches, Width: 0.3 inches All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.