Necklace in 2 golds and diamonds

18k yellow and white gold necklace set with 15 brilliant-cut diamonds, including one of approximately 0.07 ct, two of approximately 0.05 ct each, four of approximately 0.05 ct each, and eight of approximately 0.02 ct each. Total diamond weight: 0.55 ct. Necklace length: 44 cm. Width: 0.44 cm. Total weight: 15.77 g. Owl hallmark. Excellent condition