This ring was successfully printed and produced in metal.
Set contains STL model ready for printing and Rhino3d 3DM source file.
Ring size: 17.2mm
Gems: 134x1.2mm diameter round cut
Model volume is 780mm^3.
Estimated weights:
OBJ's are untested (anyway OBJ format is useless for production), exported from Rhino as mesh and as NURBS. I added OBJ's just for better publishing and placement after stupid recomendations of CGtrader (probably for smart heads from CGt quantity of junk and thumbs is more important than quality of models).