According to our records, this business is located at 924 S Heald St. in Wilmington (in New Castle County), Delaware 19801, the location GPS coordinates are: 39.722364 (latitude), -75.547685 (longitude). Diamond Materials Inc is categorized under Oils-Asphalt and Road (SIC code 1611). Known organization owner is Richard Pierson. Current estimates show that the unit has a sales volume of $11,750,000 and staff of approximately 50 people. You can contact the company by phone at (302) 658-6524; the following fax number is also provided: (302) 658-0684. Business website can be accessed at www.diamondmaterials.tripod.com.