A sapphire, diamond and platinum demi-parure by Oscar Heyman & Brothers, for Birks, comprising of a brooch of leaf design with fancy-cut coloured sapphires in hues of blue, pink, purple, peach and pale yellow and brilliant-cut diamond accents, surrounding a stem-shaped curved spine of tapered baguette-cut diamonds. With matching ear clips. Brooch and both ear clips stamped with maker’s mark for Oscar Heyman & Brothers and further signed Birks. 5cm and 2cm in length and 20.73g and 6.14g, respectively. Circa 1950.