A. E. Köchert
Aarne
Aldo Cipullo
Art Deco
Baugrand
Berlin Iron
Birks & Sons
Black, Starr & Frost
Blackamoor jewellery
Boivin
Bolin
Boucheron
Buccellati
Bulgari
Carl Wagner and Frédéric-Jules Rudolphi
Cartier
Castellani
Chaumet
Cusi
David Webb
Fabergé
Falize
Fontana
Fouquet
Gaillard
Giuliano
Harry Winston
Henri Picq
J.E. Caldwell
Janesich
JAR
Jérémie Pauzié
John Rubel Co.
Koch
Kokoshnik
Kramer
Lacloche
Lalique
Louis-David Duval
Marchak
Marcus & Co.
Mastini
Mellerio dits Meller
Morozov
Natural pearls
Oscar Heyman & Bros
Paul Legrand
Ravasco
Schlumberger
Sterlé
Tiffany & Co.
Van Cleef & Arpels
Verdura
Wièse
William Ruser
Henri Picq

Henri Picq's workshop located in the Marais was one of the most important in Paris in the early years of the 20th century through into the late 1920s.

Producing some of the most iconic designs of the period and the highest quality gem-set platinum jewellery, he worked for Cartier, amongst others, becoming their main supplier between 1900 and 1918. He pioneered the use of novel materials and executed some of Cartier’s most avant-garde designs. Picq was especially well known for the beautifully executed Cartier 'Tutti Frutti' jewels, at the time described simply as ‘pierres de couleur’, he made a bracelet designed for the Paris Exposition Universelle in 1925.
   
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