We CAD CAM the custom designed ring. We cast the wax and got to work. It took awhile to set the 78 diamonds in this mounting. Again, the bench microscope saved my eyes and my mind. The recessed channel proposed a problem in sanding and polishing after hammering to tighten the stones. The mill grain beads, unfortunately, can be easily sanded or polished away. So, I high polished the chasing tool to help minimize the finishing work and tapped very carefully with light, multiple hits. More then usual. I used high shine rubber abrasives to remove the tool marks. Even though there are not many flat surfaces that needed lapping, a lot of time was spent polishing the tight spaces with small brushes with my rotary tool at the bench.
The end result is an awesome look.