66. DIAMOND BROOCH Forming a stylised bow, entirely paved with old-cut and 8/8-cut diamonds, French hallmark for platinum (850°/00), size 6.80 x 4.00 cm, gross weight 27.06 g. DIAMOND BROOCH Designed as a stylised bow, pavé-set throughout with old brilliant- and single-cut diamonds, French import marks for platinum, measurements 6.80 x 4.00 cm, gross weight 27.06 g.