Check out Light Gold Diamond Men Ring 2MR070 3D model on CGTrader for $20. High-quality mesh by Bulgeri.
STL (Stereolithography, filesize: 4.34 MB), OBJ (OBJ, filesize: 3.54 MB), FBX (Autodesk FBX, filesize: 433 KB), 3DM (Rhinoceros 3D, filesize: 4.23 MB)