The marquise diamond is a classic and historic diamond shape that captures hearts thanks to its whimsical shape that resembles a smile. Although we don’t blame you if you see something else. Marquise cut stones are also called boat-shaped, football-shaped and eye-shaped diamonds, or the navette. None of these are incorrect; in fact, the “navette” cut diamond, which translates from the French language to “little ship,” is often considered similar in shape to all these things. Despite their dramatic look, marquise cut diamond are rarely seen in engagement rings; but for some non-traditional brides, that only increases the appeal of these loose diamonds. Here’s what you need to know if you’re considering getting a marquise cut.