The Naville Cut

(via Diamond Cuts in Historic Jewelry:1381-1910) Herbert Tillander writes:

This cut existed as early as the end of the sixteenth century, when it was applied above all to drop-shaped diamonds. With its sixfold symmetry and its pavilion, it resembles both the Rose Cut and the Taille en Seize and must therefore be considered a hybrid. In a Swiss nomenclature published by H Stranner (1953), drop-shaped Roses are termed Navilles, from the Latin navalis, meaning boat-shaped. This seems a reasonable description so I, too, have adopted it, although only for the hybrid cuts.