Rhinogold
Don’t be taken in by its interface (Office 2007?) , No doubt is about the software is Rhinoceros.Â
RhinoGold® is a jewellery solution based on Rhinoceros® 4.0 NURBS modeler for Windows.
With RhinoGold®, designers and manufacturers of jewellery have the opportunity to design, modify and manufacture jewellery comprehensively, quickly and precisely, without sacrificing the clear, intuitive interface which facilitates and speeds up learning time.
After you installed rhinogold, u can select the rhinogold mode to work. By the way, Visually the interface is pleasing.
★  Download RhinoGold (full functional for 30 days.)
★  Plug-in HomePage (Tutorial…)
★  Other Helpful Links：SimplyRhino