Stone ceilings are a trick, for obvious reasons. I enjoy the challenge, but everything has to be right on the way in. There can be no cut corners.
Later I recessed the stone around the bezel of the light fixture. It fit well when I walked away, I can assure you.
It was important to the clients and myself that the first step through the door be a positive expression, and this keystone was the hinge for that.
Curves, baby, curves. No problem, love them!