Ruby, peridot and diamond 'Pineapple' brooch, Jean Schlumberger, Tiffany & Co., modelled as a pineapple pave set with circular-cut peridots highlighted with similarly cut rubies and topped by a cabochon ruby above textured gold foliate detail, mounted in 18ct gold, with maker's marks, signed Schlumberger for Jean Schlumberger, Tiffany, numbered 992.