Necklace with a chain in yellow gold, rubies and diamonds

18k yellow gold (750/1000) necklace. Scrollwork motifs set with a ruby ​​and six diamonds. One old-cut ruby, total weight approximately 0.08 ct. Surrounded by six eight-cut diamonds, total weight approximately 0.06 ct (each diamond weighing approximately 0.01 ct). Cable chain. Length: 38.50 cm. Chain width: 0.10 cm. Length of the motif section: 1.80 cm. Width: 0.80 cm. Total weight: 2.21 g. Eagle's head hallmark. Excellent condition.