1) .Stl and .obj files are attched herewith. 2) The Ring is solid and suitable for investment casting. 3) The total polygon count of mesh is 0.5 million . 4) Volume of the closed solids = approx 746 mm3 for the 2 closed solids. 5) Mesh is 3d printable and castable and diamonds are of 1.4 mm. 6) The Current size of the ring is 20.4 mm. 7) Need any help , ready for modification.