Piaget Part of the iconic 'Possession' collection, Piaget's 18-karat rose gold necklace has a round pendant made from 22.20-carats of malachite, revered for its intense green hue. It's encircled by a signature turning band inset with a 0.016-carat diamond - the brand believes rotating it is symbolic of unlocking life's creativity and positive energy. This piece can be worn long and low on the decolletage, or at the perfect length for styling with an open shirt.