Trap Four Round Diamond Eternity RingThe Trap Four Round Diamond Eternity Ring is a versatile design that's suitable for various occasions. Metal Harmony: The Trap Four Round Diamond Eternity Ring is handmade in a combination of platinum and 18ct yellow gold. Diamond Brilliance: 5x3mm round brilliant cut diamonds, with a total carat weight of 0. 5cts, are set into the design, and arranged to form a continuous band around the ring.