cut for gemstones [2]
Cutting a gemstone consists of angling the facets so that the stone’s brilliance is intensified.
navette cut 
Brilliant cut with a girdle that is shaped like a spindle with pointed ends.
briolette cut 
Elongated cut that is completely covered with triangular facets and has neither crown nor pavilion; it is used when stones are to be set in a pendant.
French cut 
Cut where the table and the girdle are square and the facets triangular.