Boulder Opal Ring | 10k Gold Ring butterfly jewelry The two birds on the

The two birds on the right of the brooch are shown tugging on a leaf

This antique coral charm (circa 1890) features a carved and polished branch of coral mounted in 14k gold

The ring is marked 18k and acid tests for 18k gold

The crescent moon pendant is adorned with a bouquet of blue enamel forget-me-not flowers with lustrous pearl accents

60ct of diamonds

Boulder Opal Ring | 10k Gold Ring butterfly jewelry The two birds on theA captivating boulder opal ring with blue gray undertones and vibrant flashes of blue and green fire set in an elongated antique mounting. The dramatic mounting is 10k gold with a nature inspired asymmetrical design and dates to the Art Nouveau era (circa 1910). The boulder opal is a later replacement stone. The face of the ring measures 1. 6 inches from north to south by 0. 6 inches wide. It is in very good condition. The ring is currently a size 7.