This is a breath taking ring! It utilizes either your diamond or an optional Cubic Zirconia or other gemstone. Because of titanium's unique springy properties, the band clamps the diamond between small grooves cut into the side walls. The improvement in fire from your diamond is hard to fathom. Each ring is individually designed for the exact dimensions of your stone.  Since this ring is symmetrical, the height of the stone will determine the thickness of the ring, so smaller diamonds (below around 3mm diameter) make for more comfortable rings.