The “gemstones” in these bracelets are captive, meaning that once printed they rotate freely within the band. Gemstones come in two styles, faceted and cabochon (smooth). There are three sizes of bracelets, see below for details.

See here for video: https://youtu.be/5xajyMzhHXw

See here for stable downloads:
Faceted Gemstones: https://social.thangs.com/m/194736
Cabochon (Smooth) Gemstones: https://social.thangs.com/m/194737

This design is particularly suited to printing with multicolour filament as rotating the gemstones allows for visualization of the different filament colours.

Once printed, allow the print to cool. Wiggle each gem back and forth until it breaks from the small internal supports. Twist it a few times until it turns smoothly.

The inner diameter of each bracelet is as follows:
24 Gemstones: 90mm
20 Gemstones: 75mm
16 Gemstones: 60mm