18ct gold, ruby and peridot 'Pineapple' brooch, Jean Schlumberger, Tiffany & Co., circa 1957, modelled as a pineapple pave-set with circular-cut peridots embellished at intervals with similarly-cut rubies surmounted by a cabochon ruby framed by textured gold foliate, length approximately 50 mm, signed Schlumberger for Jean Schlumberger, Tiffany. Accompanied by a Tiffany & Co. box. Literature: C. Bizot, M. de Gary and E. Posseme,the Jewels of Jean Schlumberger, Harry N. Abrams, Inc., New York, 1995, p.41 (illustrated, another example)