MARQUISE CUT
An elliptical shaped cut with pointed ends, the marquise cut is also known as
the football-shaped cut, the boat-shaped cut, the eye-shaped cut, or the navette.
The shape was first created in the 18th century when King Louis XV
commissioned a diamond to be cut to the same shape as the lips of his mistress,
the Marchioness Madame de Pompadour. Marquise is also a hereditary rank,
above Count and below Duke — some French courtiers wore the marquise
diamond to denote status.