This specific 3D model, "Women Light Weight Ring STL OBJ FBX JCD Details 3D print model 28", 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: 37.2 MB), OBJ (OBJ, filesize: 83.2 MB), FBX (Autodesk FBX, filesize: 11.6 MB), JCAD (JewelCAD, filesize: 83.6 KB), RIB (Renderman, filesize: 784 KB)