Mason & Madison Co. Has Been Featured On. Trendy style, easy to wear. This chain-style necklace features a flawless and contemporary look.. Item Details:. • Premium-grade PVD 18K Gold-plating for a durable and scratch-resistant accessory that withstands all the elements of an active lifestyle without sacrificing a luxurious look.. • Length: 18 inches. • Golden Benefits: the Energy of CONFIDENCE + SELF-WORTH + COURAGE. • Designed in New York, USA