This specific 3D model, "Light weight ring earrings pendant set 3dm stl 4 renders model 3D print model 2", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
The licensing terms for this digital asset are governed by "Unknown license".
STL (Stereolithography, filesize: 11.5 MB), 3DM (Rhinoceros 3D, filesize: 24.4 MB)