Producers of ready-mix concrete, sand and stone products. Diamond Sand and Gravel is located in Sparta, NJ and does business as Sparta Redi-Mix and Sparta Sand & Gravel. We are a provider of ready-mix concrete and washed sand, gravel and crushed stone. Our crushed stone and concrete sand are washed and screened at our state-of-the-art plant, installed in 2009. We remain extremely proud of our employees, our products, and our customer service. We offer a full range of ready-mix concrete products to meet your needs. Our fleet of mixers can handle any job, regardless of size. Our drivers are experienced, knowledgeable, and service oriented. We are here to help you. Contact us for a FREE quote We would like to submit a FREE quote and arrange to to provide technical data on our concrete products and samples of our sand and stone products for any of your projects. For ready-mixed concrete, we serve all of Sussex, Morris, Passaic, and Warren counties as well as portions of Essex, Union, Bergen, Hunterdon, and Somerset counties. Our Aggregate products can be picked up at our plant in Sparta or you may request a quote for delivery.