This specific 3D model, "Diamond ring 3D print model 40", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
This specific 3D model is provided under the "Unknown license" framework.
Native Formats: 3DM (Rhinoceros 3D, filesize: 6.54 MB)
Exchange Formats: OBJ (OBJ, filesize: 9.22 MB), AMF (amf, filesize: 20.3 MB), 3MF (3D Manufacturing File, filesize: 588 KB), STL (Stereolithography, filesize: 4.23 MB)