Diadem of the Duchess of Angoulême Marie Thérèse of France
made in Paris in 1819-1820 to match an emerald necklace made by Paul-Nicolas Menière in 1814.
Évrard e frédéric bapst, diadema della duchessa d'anguoleme, smeraldi, diamanti, oro e argento, parigi 1819-20.jpg
Department of Decorative Arts of the Louvre