Since 1948, Norman Landsberg has been New York’s choice designer for diamond jewelry and engagement rings. The Norman Landsberg App is the essential interactive experience for diamonds. We offer a fun and interactive app where you can see actual photos of diamonds and seek guidance from Norman Landsberg all from your mobile device. Norman Landsberg is one of the founding fathers of 47th Street and his business motto still holds today: “Never say no, when you can say yes to a customer.”