I've prepared CAD files for our company logo , as well as for other companies (can't disclose the name due to NDA), which was used for CNC milling. Also I've prepared the CAD model for flight simulators, & automotive kits, So I'm cent percent confident that I can prepare the cad file for your jewellery also. After completion of the CAD file , I can even show how that jewellery would be looking in real life scenarios.