The following 3D model is known as "Women Wedding Engagement Ring 3D print model 11" and is associated with author "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: 2.09 MB), OBJ (OBJ, filesize: 3.86 MB), FBX (Autodesk FBX, filesize: 643 KB), 3DM (Rhinoceros 3D, filesize: 2.91 MB)