Art Deco Barrette brooch in white gold and diamond

Art Deco bar brooch in 18k white gold (750/1000). Set with 17 old-cut diamonds: 3 approximately 0.37 ct each, 4 approximately 0.25 ct each, 6 approximately 0.15 ct each, and 6 approximately 0.10 ct each. Total diamond weight: 3.61 ct. Dimensions: 7.5 x 0.55 cm. Total weight: 6.36 g. Eagle's head hallmark. Excellent condition.