I created this jewelry from a clipart found on pinterest.com
Dimensions: 57x50xH4 mm (ring: H8 mm, hole diameter: 4 mm)
to see all my creations on t...his site (more than 390 !), enter "oasisk" in its search window
3d model print parameters
no border, no support, just a skirt to start the extrusion process.
A raft is recommended if your printer does not have ...a hot platen.