Helzberg Diamonds is a jewelry retailer founded in 1915 by Morris Helzberg that has 210 stores in 36 states. The company is headquartered in North Kansas City, Missouri and is a subsidiary of Berkshire Hathaway. Helzberg Diamonds offers a variety of jewelry products including engagement rings, wedding rings, necklaces, bracelets, and watches. The company also offers services such as jewelry repair, cleaning, and resizing.