COUPLE DIAMOND BAND 3D print model

1) .Stl and .obj files are attched herewith. 2) The Rings are solid and suitable for investment casting. 3) The total polygon count of mesh is 0.1 million . 4) Volume of the closed solids = approx 1011 mm3 for the pair. 5) Mesh is 3d printable and castable and diamonds are of 1.4 mm. 6) The Current sizes of the ring are : 16 mm for diamond ring and 18.1 mm for ring without diamonds. 7) Need any help , ready for modification.