Piaget Rings. Possession series. SKU: G34PR8. Metal Type: White Gold. Metal Stamp: 18k. Piaget Possession 18k White Gold Ring. This white gold and diamond turning ring features two fine bands that turn in perpetual motion, embodying the symbolic essence of the Possession world. The central band, engraved with the Piaget logo and set with two brilliant diamonds, adds a touch of understated brilliance to this elegant creation.