Simple stud with Diamond centers, set in 18kt. The Small size has a pair of 2.5 mm diamonds, the Mini a 2 mm diamond center and the Micro have a 1.5 mm diamond center.
The Micro cube measures 9.5mm square and 4.7 mm deep
The Mini cube measures 11.3mm square 6mm deep
All styles have double notched 14kt post.