Looks like pebble, but is smooth like plaster. The ultra premium Primera Stone pool finish combines the durability and natural look of a pebble pool with the smoothness of a polished surface. Some of the colors are accented with recycled glass that adds a prismatic dimension to the pool finish. Primera Stone® pools are sure to have your guest asking where they can get this beautiful pool finish. Complete the remodeling of your pool with this perfectly polished finish.