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)

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

The earrings measure 0

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