This specific 3D model, "Solitaire Women Light Weight Band Ring 3D print model 16", 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: 1.82 MB), OBJ (OBJ, filesize: 3.9 MB), 3DM (Rhinoceros 3D, filesize: 2.73 MB), FBX (Autodesk FBX, filesize: 596 KB)