According to our records, this business is located at 29 E Madison St. in Chicago (in Cook County), Illinois 60602, the location GPS coordinates are: 41.8818456 (latitude), -87.6267415 (longitude). George Neumark Co is categorized under Diamond Cutting (SIC code 3915). Known organization president is George Neumark. You can contact the company by phone at (312) 263-1340.