Axel - Square Prong Set Low Profile End

Axel ASTM F-136 titanium, threadless end, features a low profile stunning princess cut premium craft zirconia with a wide prong setting and flat back that sits flush to piercing. Premium zirconia are cut and polished to perfection. They have all the characteristics of a real diamond with exceptional cut and sheer brilliance. Black gems are ceramic. Pin measures 25G(0.45mm) thick and 4.5mm long. Fits most other brands.

The measurements are the approximate outer diameter of the entire piece, prong, and gem together. The actual gem size is smaller. 

2.5mm gem measures 2.8mm with prongs
3mm gem measures 3.3mm with prongs
4mm gem Measures 4.5mm with prongs