801 N. Perryville Rd. Rockford, IL 61107 Phone No. 815-310-3322 http://www.grunos.com/ Jewelry Store, Diamond Buyer, Watch Repair Service, Jeweler 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... read full review »