Iris thickness choice although the gears back there

although the gears back there will mean the inscription would have to be small

or can work in brushed well too

You could opt to have a full non Euro shank if you prefer

It can easily handle larger stones that overpower other designs

The Xsis Companion ring

Iris thickness choice although the gears back thereThe Iris ring has a working mechanical shutter mechanism which reveals a hidden stone. It could optionally hide a laser engraved letter. The tiny shutter vanes with special gear mechanisms were specifically engineered to fit on a ring and are laser cut from aerospace grade titanium. The ring is 9mm wide and the stone is 8mm diameter. It can be a lab created birthstone like this amethyst or can be a clear CZ. Just specify in the Comments section.