I love me some orbs!  This Galaxy Rhyolite is stunning in neutral tones of black and white.  I kept the setting simple so as not to compete with the stone and let it shine so I chose to prong set it to reveal the sides and back of the stone.  Had to add one of my water castings with a sterling silver ball mounted in the center as accent to the orbs in the stone. It hands from a 20" sterling silver chain with lobster clasp.