This specific 3D model, "Women Ring Render 3dm STL MTL SLC JCD OBJ FBX Details 3D print model 23", 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.
STL (Stereolithography, filesize: 55.8 MB), OBJ (OBJ, filesize: 123 MB), FBX (Autodesk FBX, filesize: 16.4 MB), 3DM (Rhinoceros 3D, filesize: 3.16 MB), RIB (Renderman, filesize: 541 KB), JCAD (JewelCAD, filesize: 65.2 KB)