This specific 3D model, "3carat Emerald and Pear Stone 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".
STL (Stereolithography, filesize: 12.6 MB), OBJ (OBJ, filesize: 26.2 MB), 3MF (3D Manufacturing File, filesize: 517 KB), MP4 (MP4, filesize: 1.88 MB), 3DM (Rhinoceros 3D, filesize: 4.69 MB)