Our Chelsea Pebble Ring features a Lake Michigan pebble with a bezel that surrounds and holds the matte black stone. The back of the bezel is open so the stone is in contact with skin and the bezel top is scalloped with four points. Made in 18K gold. This Chelsea Pebble Ring is shown in size 7 1/2. We will send a photo of the stone we will set in your ring prior to creating your ring. Perhaps you have your own pebble that you'd like set like this! Please let us know desired size and custom requests at checkout. Allow three weeks for choosing your stone and fabrication of your ring.