Check out Light Gold Diamond Men Ring 2MR054 3D model on CGTrader for $20. High-quality mesh by Bulgeri.
STL (Stereolithography, filesize: 5.82 MB), OBJ (OBJ, filesize: 14.9 MB), 3DM (Rhinoceros 3D, filesize: 5.15 MB), FBX (Autodesk FBX, filesize: 2.52 MB)