Finally I managed to obtain my very own jewelry piece from a mathematical function
My first experiment sending it on imaterialise was a failure, they sent me a message after a couple of weeks saying that it contained errors and could not be printed. Lesson learned: FFF machines are easier on the small errors in the mesh. I corrected it and sent it again to shapeways and after 15 days I had my small box
I LOVE how it turned out: the surface has a very nice finish, the size is adorable, it has a good weight and looks fabulous.
In the end I chose gold plated glossy, it’s 3,9 cm long and I payed 39€ (including the shipping costs).