This specific 3D model, "Women Ring Render 3dm STL MTL SLC JCD OBJ FBX Details 3D print model 9", 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: 59.4 MB), OBJ (OBJ, filesize: 131 MB), JCAD (JewelCAD, filesize: 175 KB), 3DM (Rhinoceros 3D, filesize: 9.54 MB), FBX (Autodesk FBX, filesize: 18.2 MB), RIB (Renderman, filesize: 1.62 MB)