Yellow gold and diamond necklace

18k yellow gold (750/1000) necklace. Geometric motifs set with diamonds. Flat link. One brilliant-cut diamond, total weight approximately 0.56 ct. Sixteen single-cut diamonds, total weight approximately 0.32 ct (each diamond approximately 0.02 ct). Twenty-four brilliant-cut diamonds, total weight approximately 0.24 ct (each diamond approximately 0.01 ct). Length: 44 cm. Length of the motif section: 4.80 cm. Width: 1.12 cm. Total weight: 26.09 g. Eagle's head hallmark. Excellent condition.