brilliant cut facets
The most common cut for a diamond is the brilliant cut; it consists of 58 facets spread over two faces, which are separated by a girdle.
girdle 
Polished or unpolished edge that separates the crown from the pavilion.
table 
Upper horizontal facet of the diamond that has the shape of an octagon.
upper girdle facet (16) 
Triangular facet cut on the crown face; the base touches the girdle.
bezel facet (8) 
Facet cut on the crown face; the tip touches the table, the point and the girdle.
table 
Upper horizontal facet of the diamond that has the shape of an octagon.
star facet (8) 
Triangular facet cut on the crown face; the table is its base.
lower girdle facet (16) 
Pointed facet cut on the pavilion side; the girdle is its base.
pavilion facet (8) 
Facet cut on the pavilion side; one point touches the culet and the other the girdle.