This specific 3D model, "Round Engagement Ring 3D print model purchase", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
The licensing terms for this digital asset are governed by "Unknown license".
3DM (Rhinoceros 3D, filesize: 78.8 MB), OBJ (OBJ, filesize: 203 MB), FBX (Autodesk FBX, filesize: 29.2 MB), STL (Stereolithography, filesize: 39 MB), 3DM (Rhinoceros 3D, filesize: 78.8 MB)