Bright and beautiful, express your love with the key to your heart. Fashioned in sleek sterling silver, this key-shaped design features a shimmering diamond-accented heart-shaped bow and blade. Turned on its side and centered along a 18. 0-inch length of cable chain, this necklace is certain to delight. Polished to a brilliant shine, this necklace secures with a spring-ring clasp. Sterling silver. It secures with a spring-ring clasp.