A coloured sapphire set clip brooch
by Boucheron,

in the form of a pentangle set with calibre cut yellow and blue sapphires,
yellow and blue are the racing colours of the Rothschild famly,
in a hinged yellow gold mount.

The brooch was supplied by Boucheron to a French
member of the Rothschild family.

Boucheron, Paris,
circa 1935.

4.2 cm across