136. BOUCHERON: DIAMOND PENDANT, CIRCA 1920 Forming a cross, centred on a cushion-cut old-cut diamond, paved throughout with old-cut and brilliant-cut diamonds, signed Boucheron Paris, French hallmark for platinum (850°/00), size 5.30 x 3.40 cm, gross weight 10.26 g. BOUCHERON: DIAMOND PENDANT, CIRCA 1920 Designed as a cross, centring on a cushion-shaped diamond and pavé-set throughout with old brilliant- and brilliant-cut diamonds, signed Boucheron Paris, French assay mark for platinum, measurements 5.30 x 3.40 cm, gross weight 10.26 grams.