Boulder Opal Ring | 10k Gold Ring butterfly jewelry SI1 clarity) set in a

SI1 clarity) set in a finely detailed filigree mounting

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

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

This delightful baroque pearl and diamond ring dates to the early 1900s (circa 1900-1910)

Boulder Opal Ring | 10k Gold Ring butterfly jewelry SI1 clarity) set in aA 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.