Lozenge brooch, Art Déco period, in platinum entirely paved with vintage-cut diamonds, in the

Lozenge brooch, Art Déco period, in platinum
entirely paved with vintage-cut diamonds, in the
center a round-cut 2,52 carats approx. (most likely
I/SI1) bezel-set diamond
Dimensions: 4 x 5,5 cm
Gross weight: 14,8 g