801 N. Perryville Rd. Rockford IL 61107 Phone No. 8153991525 Jewelry Store, Diamond Buyer, Watch Repair Service, Jewelry Gruno's Diamonds is a family owned and operated jewelry store located in Rockford, Illinois. We are a full service jeweler carrying the finest diamonds, watches and accessories. Gruno's is an official Rolex dealer in the Rockford area. Weather you are looking for that perfect and unique engagement ring, a gift for a special occasion, or just want to treat yourself to some of the finest jewelry in the... read full review »