White Diamond Sand – White Diamond Sand is a course very white sand, double washed and screened to FDOT Specifications. White Diamond Sand makes an excellent Stucco Sand because of its consistency of gradation and color. Because it is FDOT approved it meets a higher standard than regular concrete sand. White Diamond Sand It is the only sand we use in our concrete. It also has a high FM of 2.23 so it makes an excellent concrete pump mix.