If you own a RinGenie, the new rocker assembly is a must have.  It will help you with your stone setting and engraving. Let me show you how.

The first thing you will notice is a slot milled out here that will fit your RinGenie vise.  Second thing is there is a hole at the bottom of the rocker and a hole at the bottom of the vise where you will actually screw these two together.  Line up your holes and tighten.  Once secure, loosen these and now it will rock on its axis.  

The knobs on the side of the rocker will allow you to tighten this vise in any position.  As you can tell there's some pretty steep angles here so you know all those times you have trouble engraving can't find the right angle? This tool here is going to help you greatly.  As you can tell, it's very aggressive with its angles.  You can load it into your vise.  Make sure to leave enough room for your knobs so you can tighten them.  Now you're left with virtually almost any angle possible.  Find your right angle, tighten your knob, and you're ready.