Mason & Madison Co. Has Been Featured On. Item Details:. • Lab-Grown Diamonds, 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.. • Diameter 2 in, Circumference 6.5 in. • Diamond Brilliant Benefits: the Energy of POISE + PURITY + VISION. • Golden Benefits: the Energy of CONFIDENCE + SELF-WORTH + COURAGE. • Dispatched from New York, USA