This specific 3D model, "Pack jewelry ring 3D print model buy", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
The license for this digital asset is "Unknown license".
STL (Stereolithography, filesize: 121 MB), OBJ (OBJ, filesize: 153 MB), 3DM (Rhinoceros 3D, filesize: 219 MB)