This Bling Ring is printed in two parts and glued together.  I used gorilla glue, but super glue should work as well.   I found it easiest to place a drip of glue on the diamond tip, then set the ring on the diamond as it sits on a flat surface pointy side up.

The diamond print looks very nice with a hollow print where the vase printing method is used and a Clear PETG is used.

Each diamond has to be printed individually because the vase method is used.

I have included individual prints for PLA and PETG for ring sizes 5 to 13 in 0.5 ring size steps. The ring sizes grow uniformly to meet the required inner diameter, so the thickness and depth change as well.