Extend Surface round

Trying to model a jewelry piece in Rhino 6. I created a surface with a pattern and then extend the surface and flow over a curvature. As a result I get this flat cuff. As pictured here:

But I want to make it more “3D” like the picture I have here.:

My first idea was to make a bunch of arcs and use Loft to create round surfaces. Combine those surfaces and extend. but is there an easier way?