Check out A package of solitaire ring heads engagement 3 prong printable 3D print model buy 3D model on CGTrader for $4.9. High-quality mesh by BlinkJewellers. 3D Print Ready.
STL (Stereolithography, filesize: 18.5 MB), OBJ (OBJ, filesize: 17.1 MB), FBX (Autodesk FBX, filesize: 2.07 MB), 3DM (Rhinoceros 3D, filesize: 23.4 MB)