. If it where my house i would break up a nice piece of copper, cut a kerf into the cement, and cap the whole detail off. This will take care of water penetration, will conciel the edge variation of the stone, and IF DONE CORRECTLY, will look real nice. G
Im kind of surprised code or your home owners insurance doesnt want a railing on the porch, that has to be pushing 40+ inches on the high end isnt it?