Certified waterproof, the Birthstone Bracelet from Katie Loxton is designed in durable 18K Gold PVD Coating, making it waterproof, sweat-proof, and life-proof. It features the month's real semi-precious stone and is beautifully presented on a card that highlights the birthday girl's unique traits.,Certified waterproof, the Birthstone Bracelet from Katie Loxton is designed in durable 18K Gold PV