Hours Of Operations Helzberg Diamonds Iowa Sioux City Helzberg Diamonds Hours of Operation and Locations in Sioux City, IA 4.8 - 47 votes 1 Locations in Sioux City Helzberg Diamonds Hours Category: Jewelry Helzberg Diamonds - Sioux City, IA 51106 4400 Sergeant Rd, #242(712) 274-2772 View Store Details Explore Sioux CityView More Apparel Sam's ClubKmartCatoCarharttCarter's Sports TargetVansRoxyZumiezAustad's Golf Jewelry Sam's ClubHobby LobbyCatoZalesKohl's Outlet Recommend For You Goody's H & M Body Central J Jill Five Below It's Fashion Footaction Bebe BCBGMAXAZRIA Torrid