This specific 3D model, "Solitaire Women Light Weight Pear Stone Band Ring 3D print model get", is an asset made available by "Unknown author".
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STL (Stereolithography, filesize: 1.68 MB), OBJ (OBJ, filesize: 4.03 MB), 3DM (Rhinoceros 3D, filesize: 3.29 MB), FBX (Autodesk FBX, filesize: 694 KB)