An Art Déco turquoise set bar brooch, 1930s-40s

platinum (unmarked), 2 diamonds weighing in total approx. 0,50 ct I-J/SI, 2 turquoise cabochons, 30 16/16 cut diamonds, rose-cut diamonds weighing in total approx. 1,00 ct H-K/VS-SI, length: 6,5 cm, weight: 8,86 g