Experience what will become an Omaha favorite. the.diamond.room is an urban, chic event venue & banquet hall featuring 10,000 sq.ft. of flexible event space that accommodates 50 to 450 seated banquet guests to over 600 standing or seated. We have experienced event designers who guide you through the entire planning process from concept to completion. We aim to help you create a custom event that will exceed your expectations. Whether you’re planning a wedding, a gala, or a corporate event, we'll take care of all the details. We won't settle for anything less than immense impact. Our goal is to mesmerize – every. single. time.