Marc Lalique (1900-1977) for Saks, Sea treasure. Opalescent glass box with frosted glass pearl-shaped perfume bottle. 1936 – for the 10th anniversary of Saks on Fifth Avenue in New York – limited edition of 100, private collection

Cultured Pearls Pavilion. International Colonial Exhibition, Porte de Vincennes, 12th arrondissement. Gelatin silver bromide photographic print, Paris. 1931 

Adolf de Meyer, Coco Chanel, photograph, gelatin silver print, c. 1930, New York, Metropolitan Museum of Art, 1974.529 

Jean Gabriel Domergue (1889-1962), Advert:  “Van Cleef & Arpels' jewelry adorn women all around the world”, La Renaissance de l'art français et des industries de luxe,  January 1923, Paris, BnF

Edmond Dulac (1882-1953), illustration for Léonard Rosenthal, Au Royaume de la perle, Paris, L’Edition d’Art H. Piazza, 1920, Courtesy of the Gemological Institute of America (GIA).

André Jolivet for the Delettrez Perfumery House, Parfum XXIII. Glass, paper, card, cork, metal, velvet, Franc 1923, Grasse, Musée International de la Parfumerie

Jeanne Lanvin necklace (1867-1946). 22 fine descending pearls alternating with small old-cut diamonds, private collection

Pigeat, “Técla, 10 rue de la Paix, Paris, 7 Old Bond Street, London, 398 Fifth Avenue, New-York”, Gazette du bon ton, no. 2, Paris, Librairie centrale des Beaux-Arts,  p. LXXXVIII

Van Cleef & Arpels, Gland: brilliant-cut diamonds and pearls. Van Cleef & Arpels Paris Luxury Jewelry Catalog, 1922, Van Cleef & Arpels Archives