Hi.
No.
For example TurboSquirt even hasn't any categories and tools for non-CG/FX/viz models at all. 3dExport has, but anyway gives no sales. Shapeways looks overcrowded and too complicated (in terms of operationg with Google analytics). And one more important factor: shapeways can't guarantee good quality of jewelry models (in my opinion) especially if model has intricate elements or complex design. Another smaller "marketplaces" for jewelry models looks too poor or even fraudulent (or in better case underdeveloped).
Pretty sad situation :)
...but if somebody knows good sites for jewelry models selling, would be fine to know more about them. Independent on "covidophrenia" CGT strategies and methods of content administration more cuts sales than stimulated them.