The following 3D model is known as "Solitaire Engagement Art Deco Ring 3D print model 56" and is associated with author "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
Usage of this 3d asset is subject to the "Unknown license" agreement.
STL (Stereolithography, filesize: 242 MB), JCAD (JewelCAD, filesize: 215 KB), 3DM (Rhinoceros 3D, filesize: 45.8 MB)