Sophia D Swan Opal and Diamond Brooch in 18K White and Yellow GoldAn exquisite brooch designed as a graceful swan, featuring a 21. 78 carat natural opal with vibrant play of color. The wings and neck are set with 4. 57 carats of natural diamonds, while a 0. 53 carat pear shaped diamond dangles elegantly from its beak. Accented with coral, onyx, and a ruby eye, this one of a kind piece is a true work of art.