This specific 3D model, "Women Ring Render 3dm STL MTL SLC JCD OBJ FBX Details 3D print model 68", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
This specific 3D model is provided under the "Unknown license" framework.
STL (Stereolithography, filesize: 190 MB), OBJ (OBJ, filesize: 433 MB), 3DM (Rhinoceros 3D, filesize: 5.85 MB), JCAD (JewelCAD, filesize: 304 KB), FBX (Autodesk FBX, filesize: 56.8 MB), RIB (Renderman, filesize: 2.04 MB)