The below measurements are approximate:
- Ends with 1.5mm gems has an outer diameter of 3mm
- Ends with 2mm gems has an outer diameter of 4.5mm
- Ends with 3mm gems has an outer diameter of 7mm
- The threadless post is made with implant grade steel
There is only a slight difference in color between the rose gold and gold materials.
More threadless jewelry can be found here.