An Astounding Selection of Engagement Rings, Wedding Bands and Loose Diamonds.Iowa Diamond located in Des Moines, offers more engagement ring styles than all the stores in a major mall combined. At Iowa Diamond we can teach you the cardinal rules of the professional diamond buyer to help make your buying decision a confident one. We feature designers such as Danhov, Mark Schneider Designs, and GelinAbaci. Call or stop by today for more information, or to schedule an appointment.