Niessing Spannring Era. Size 7.5 . Two versions: for 1.0 ct diamond and for 0.5ct diamond.
You get renderings, and a finished, checked for errors .stl file ready for 3D printing. Working (desintegrated, not finished, with separate parts) .3dm file is also included for minor modification purposes if you know how to do it. Any type of modifications are also available upon request for an additional cost.
Custom orders are accepted. Any model, any style, any complexity.