Fine necklace in yellow gold, diamonds and sapphire

18k yellow gold (750/1000) necklace set with four marquise-cut sapphires of approximately 0.15 ct each. Estimated total sapphire weight: 0.60 ct. Three brilliant-cut diamonds of approximately 0.04 ct each. Estimated total diamond weight: 0.12 ct. Chain length: 40 cm. Dimensions: 3.75 x 0.55 cm. Total weight: 2.79 g. Eagle's head hallmark. Excellent condition