This specific 3D model, "Light wt Women Diamond Earrings 3D print model 4", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
Usage of this 3d asset is subject to the "Unknown license" agreement.
STL (Stereolithography, filesize: 10.6 MB), OBJ (OBJ, filesize: 31.2 MB), 3MF (3D Manufacturing File, filesize: 2.8 MB), GLTF (glTF, filesize: 4.24 MB), 3DM (Rhinoceros 3D, filesize: 8.41 MB), BLEND (Blender, filesize: 180 MB)