Cf. S. Raulet, O. Baroin, Suzanne Belperron, Antique Collectors Club, 2011, p. 319, fig. 14 for the original wax cast design of this brooch


The signature on this brooch refers to the Société Nouvelle Herz-Belperron.
Founded in 1991 to revive the creations of Suzanne Belperron, the company's production continued until 1998. Each of the 225 jewels made by the firm was marked in this way to clearly distinguish them from those made during Madame Belperron's lifetime.