Sterling Silver Diamond Pav&eacute; Heart Stud Earrings (1/5 cttw, I2-I3 Clarity) With their heart shape clusters of diamonds set within sterling silver, there's plenty to love about these thoughtful earrings. Black diamonds may have been treated to improve their appearance or durability. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Imported Carat weight listed is the total for both studs.