Pendant in yellow gold, diamonds and rubies

18k yellow gold (750/1000) pendant set with 21 brilliant-cut diamonds, approximately 0.01 ct each, and one oval-cut ruby ​​of approximately 0.57 ct. Total diamond weight: 0.21 ct. Dimensions including bail: 2.48 cm x 1.76 cm. Total weight: 6.24 g. Owl hallmark. Excellent condition.