10k White Gold Purple Sapphire and Diamond Oval Pendant Necklace, 18" White gold necklace with diamond-encrusted open oval pendant featuring channel-set sapphires in purple and lavender hues 18" Box Chain with Spring Ring clasp All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. gemstones may have been treated to improve their appearance or durability and may require special care. The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture. Imported