The story starts in 1959, when Murray Mondschein bought a Greenwich Village arts-and-crafts shop called Fred Leighton and began folding in Georgian, Victorian and Art Deco jewelry. He moved uptown in the 1970s, landed at 773 Madison Avenue in 1986, and that same year legally took the name on the door for his own.
The celebrity chapter opened in 1996, when Miuccia Prada borrowed a necklace for Nicole Kidman to wear to the Oscars; the house has dressed the Golden Globes and the Met Gala ever since, and lent jewels to films from Marie Antoinette to The Devil Wears Prada. Its assets were acquired in 2009 by Kwiat Enterprises, the American jeweler founded by Sam Kwiat in 1907.