This model is available in stl format. Ready for serial printing. All contents have been corrected and fixed for good and fast production. As a designer, I have many similar models in my archive. If necessary, I can design similar models and derivatives of these models.
Product dimensions are shown in the screenshot.
7 mm cabochon cut stone is best
If you need such rings but in a different size - write to me. I will gladly edit the weight and size for you.