I already have one Green Lantern ring in my shop but I decided to make another...
Please note that since I created the renders I have modified the ring slightly by making the inner ring of the "lantern" smaller by thickening the circle wall. This improved it dramatically, I feel. Please see Shapeways render for the actual model.
2.84 w x
3.004 d x
1.118 w x
1.183 d x