Pierre Camille Cartier (March 10, 1878 – October 27, 1964) was a French jeweler. He was one of three sons of Alfred Cartier and the brother of Jacques Cartier and Louis Cartier. Pierre's grandfather, Louis-François Cartier had taken over the jewelry workshop of his teacher Adolphe Picard, in 1847, thereby founding the famous Cartier jewelry company.
Robert Goossens (30 January 1927 – 7 January 2016) was a French jeweller who became known as Monsieur Bijou. The son of a metal foundry worker, he was born in Paris, France. In his younger years, he served an apprenticeship in jewelry making, perfecting the techniques of casting, engraving, and embossing semi-precious and simulated stones into gold and silver metals. In his decades of creating fine jewelry, Goossens mixed the genuine stones with the fakes, a blend of the artificial gems with the semi-precious for clients including Coco Chanel, Cristóbal Balenciaga, Yves Saint Laurent, Madame Grès, Christian Dior and others.