This is one of the easiest of my models to print.
You will need supports. Use grid supports on build plate only. An overhang angle of 40 degrees works very well. The loop at the top prints very well without supports.
I recommend adding a brim on the outside and inside.
Most of the ornament only requires 1 perimeter with a top of 4 layers and bottom of 3. For the top 11mm, I made gave it 2 perimeters, top of 5 and bottom of 4.
I've provided my PrusaSlicer project file and GCODE for a Prusa MK3S+ printer.
The author marked this model as their own original creation.