Rhodium Plated 925 Sterling Silver trio CZ green sets are jewelry sets made of silver with a 925 purity rating and are finished with a layer of rhodium plating. The sets typically include three pieces of jewelry, each featuring cubic zirconia (CZ) stones in green color. CZ is a type of synthetic gemstone that is often used as a diamond alternative. The trio sets can include items such as a necklace, earrings, and a ring, or similar items that complement each other.