Helzberg Diamonds Deals Since the first Helzberg Diamonds opened in Kansas City, Kansas in 1915, we’ve grown into a family of over 200 jewelry stores with a mission to help spread love to as many people as possible. And with more than 100 years of diamond expertise, we’ve earned a reputation built on trust, knowledge, and stare-worthy high quality diamonds. The kind of high-quality pieces that keep people coming back again and again.