Desert Diamond Casino offers a convenient, memorable entertainment experience in Tucson, Sahuarita, Why, and our new West Valley Casino in Glendale, Arizona. Amenities include unmatched gaming options, fine dining, the Monsoon Nightclub and world-class sporting events, music concerts and comedy sets at the Diamond Center. Desert Diamond Casinos & Entertainment also offers one of the region's finest convention centers and high-tech meeting facilities. An Enterprise of the Tohono O’odham Nation, Desert Diamond Casinos & Entertainment has been in the gaming and entertainment business for more than 30 years, beginning in 1985 with the opening of Papago Bingo in the Tucson area. In 1993, the first Desert Diamond Casino was opened on Nogales Highway. Six years later, a smaller facility opened in Why, Arizona. The third Desert Diamond Casino near Sahuarita was opened in 2001. In 2007, the original casino on Nogales Highway was replaced with a new casino, hotel and convention center complex. On the 20th of December 2015, the fourth Desert Diamond Casino - West Valley, opened in Glendale, Arizona.