Diamonds Steak and Seafood in Royal Oak is one of them, still serving up their sizzling steaks and scrumptious seafood for carryout. The Royal Oak location is actually the second Diamonds location, with the first one being in Howell. The Royal Oak location is lighter, and more modern, with diamonds sketched on the walls and their alcohol selection on full display. For Mothers Day, they are offering many specials for Mothers day including an oven-ready feast, brunch, and other kits you can prepare at home. All orders for Mothers Day must be placed by 8 pm today, May 8th.