Diamond Tiara-Necklace, England, circa 1880. Photo courtesy Berganza

A gold and silver convertible tiara/necklace composed of an articulated row of box collets set with cushion shaped old cut diamonds, each suspending a bar set with clusters of cushion shaped old cut diamonds in millegrain collet settings, seven with extended stylized foliate form pendants, all one hundred diamonds with an approximate total weight of 13.50 carats, in silver topped gold, with a cable chain for use as a necklace, with a silver frame for use as a tiara, and in a fitted leather necklace box. 

Berganza 88-90 Hatton Garden London, UK, EC1N 8PN - 02074300393