The origin of the marquise-shaped diamond is that King Louis XIV of France wanted to polish a diamond with a special shape for his lover, the Marquise de Pompadours, to complement her charming smile. In the end, the jewelry craftsmen took great pains to create a marquise-shaped diamond based on the shape of the Marquise Pompadour's lips when she smiled, and named it "Marquise" to commemorate the Marquise.
