Christie's London, 19 June 1991, lot 186

Cf. J. Rudoe, Cartier, 1900-1939, British Museum Press, 1999, p. 144 and 259

The 'halo' head ornament differs from the tiara in that it is worn vertically at the front of the head, like an alice band, rather than around the top of the head. They were predominantly made for Cartier London between 1934 and 1936. The piece would often be multifunctional transforming into a necklace and have detachable sections that could be worn as brooches. J. Rudoe, Cartier, 1900-1939