An Art Deco platinum on gold sapphire diamond and pearl brooch, bow form brooch set in platinum on a 15ct gold ground with a central triangular cut blue sapphire estimated as 1.3ct surrounded by 2.5 mm round river pearls, to pierced sides set with 32 early round brilliant and single cut diamonds and graduated 1.5 - 3.5 mm round river pearls, safety chain attached, 7ct gold pin, size 40 x 14 mm, wt. 5.64g.