This specific 3D model, "Women Ring Render 3dm STL MTL SLC JCD OBJ FBX Details 3D print model 48", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
The licensing terms for this digital asset are governed by "Unknown license".
STL (Stereolithography, filesize: 58.7 MB), OBJ (OBJ, filesize: 129 MB), JCAD (JewelCAD, filesize: 159 KB), RIB (Renderman, filesize: 1.54 MB), 3DM (Rhinoceros 3D, filesize: 16.8 MB), FBX (Autodesk FBX, filesize: 17.9 MB)