Forget Traditional Venues and Banquet Halls – Choose Something Unforgettable and Unique Our wide array of options allow you to customize your event to meet your budget, style and occasion. The.diamond.room is eastern Nebraska's and western Iowa's ideal contemporary alternative to the traditional ballroom. Our industrial urban chic event space has 14'+ high ceilings, accessibility and view through our five windowed, and openable, patio doors and retains the history of this North Omaha landmark. Our 10,000 square feet of event space on one-level can accommodate from 50 to 450 banquet guests and more than 600 standing. Equipped with state-of-the-art technology and provides numerous parking options for your guests.