A Cartier of the countess Mona von Bismarck

Important pendant/brooch by Cartier (circa 1925) 💥💥💥 from the collection of the countess Mona von Bismarck 💘 made with two carved jadeites with white diamonds over black onyx with sugarloaf rubies. This jewel will be auctioned in Sotheby’s Geneva in two weeks.  ___________ Importante colgante/broche de Cartier (circa 1925) 💣💣💣 de la colección de la condesa Mona von Bismarck 😍 realizada con dos…