"Hello Rhino Community,I am a student and new to Rhino, new to Jewelry Design, acutally, just passing through. I have years of experience with poly-/subd modeling techniques (Blender, 3ds max). The only reason I bought Rhino (edu) was that Autodesk…"
Saw your post asking for help with getting started with Rhino. Though I'm just getting going with GH myself, I teach Rhino for jewelers and have a Level I training class starting soon. The website is https://www.rhinojewelrycad.com/#/
Give me a call most any time if you want to discuss or if you want some advice on some specific problems. In viewing the image you uploaded, that sort of geometry is pretty easy to make in Rhino.