One side of the pendant has bevelled edges (craters) in the carvings to cause a rippled surface to refract light, and on the other side, the carvings are flat. This pendant may be worn to show the textured side or the flat side. The photos below show examples of both sides, as well as the thickness of the piece.
I can recreate this pendant to be any size – a larger design could be very dramatic. Of course, this one reminds me of the moon!