Navette

Navette is another term to describe a marquise shaped gemstone or jewelry contour. Pointed at both ends with equally curved sides, the term navette shape usually refers to the contour or outline of a gemstone, such as a marquise shaped cabochon, rather than a faceted gemstone.

Navette Shaped Lapis Lazuli Cabochon with a Diamond Surround.
Photo Courtesy of Frances Klein Classic Jewels.