Review for Desert Diamond Casino & Hotel - Nogales Highway Review For Diamond Grill Snack Bar Google User Mar 19 '18 at 2:08 Dropped into the casino when coming back from Tucson. The casino is right off the highway and very easy to access. The staff at the main door and throughout the casino were very friendly and helpful. The casino had Many slot machines of different denominations. We played for quite some time with a bit of luck. We had lunch at the casino and found it to be excellent quality and well priced We will definitely return again. View full site to comment or like