We used Hermitage simulated stone manufactured by Horizon Stone. We purchased this from Jenkins Brick in Pellham, Alabama. We also used Argos Custom Blended Masonry Cement; the color is Savannah Ivory.
We love this simulated stone because it looks like real stone due to the variation; there are so many different shades and shapes. When we were renovating/adding on to our house, we actually traveled to Chattanooga to see this stone on a house.