This specific 3D model, "Light Gold 18K Cross Pendant 1CP042 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 license for this digital asset is "Unknown license".
STL (Stereolithography, filesize: 2.03 MB), OBJ (OBJ, filesize: 1.74 MB), FBX (Autodesk FBX, filesize: 253 KB), 3DM (Rhinoceros 3D, filesize: 7.82 MB)