Isy Rozen is a Belgian diamond industry executive based in Antwerp, Belgium's premier diamond trading hub, where he is actively involved in the diamond trade, leveraging the city's position as a key player in the global diamond market that processes over 80% of the world's rough diamonds. He is a prominent leader in Antwerp's Jewish community, serving as president of the Shomre Hadas (Machsike Hadass) community, one of the largest ultra-Orthodox Jewish groups in Europe, and is a member of the World Jewish Congress, representing Belgian Jewish interests internationally and advocating for Jewish communal matters.