Jean Schlumberger (jewelry designer)

He quickly built an impressive client base to include the Duchess of Windsor, Babe Paley,[6] Greta Garbo, Mona von Bismarck, Rachel Lambert Mellon, Jayne Wrightsman, C.Z.

[8] Schlumberger remains one of only four jewelers Tiffany & Co. ever allowed to sign their work: the others are Paloma Picasso, Elsa Peretti and Frank Gehry.

Schlumberger was a very private person but liked to socialize among friends like Cristóbal Balenciaga, Emilio Terry, Diana Vreeland and Hubert de Givenchy.

[9] One of the most famous pieces Schlumberger ever created was the mounting for the famed Tiffany Diamond, which was in the firm's collection since the nineteenth century.

The brooch, entitled "Bird on a Rock", incorporates the impressive 128.54 carats (25.708 g) yellow diamond in a fanciful setting typical of Schlumberger's style.