My wife made the sketch. I modeled the ring in 3d (using Blender). Shapeways.com printed it out. Gems from firemountaingems.com Buy one of these from Shapeways.com here: http://www.shapeways.com/model/436295/
Ring Model, Glamor
Glamor shot of the 3d ring model
Ring Printed
Ring Concept Sketch
Concept drawing for the custom ring
Ring Model
3d model of the custom ring