Art Nouveau Boulder Opal Ring of 10k Gold antique butterfly The charm was originally a

The charm was originally a cufflink (circa 1930) by Marcus & Co

This whimsical pendant was originally an antique brooch (circa 1900)

the piece was masterfully converted into a pendant by our jeweler

One of the original turquoise stones has a chip near the edge of the crimped collet

Art Nouveau Boulder Opal Ring of 10k Gold antique butterfly The charm was originally aAn elegant boulder opal ring with vibrant blue color. The substantial mounting is 10k gold with a tiny diamond accent and dates to the Art Nouveau era (circa 1910). The boulder opal is a later replacement. The face of the ring measures 1. 2 inches from north to south by 0. 7 inches wide. It is in very good condition; however, there are subtle natural asymmetries to the boulder opal. The ring is currently a size 5. 25, but can be re sized free of