Moonstone Engagement Ring Rare Moonstone Intaglio Enamel Cape Cod Estate Art Nouveau Antique Ring 14K Seed Pearl 1890

Extremely rare antique genuine moonstone intaglio ring with fine enamel work in 14K gold from the art nouveau period (1890). Skillfully carved by hand into the highly domed cabochon stone is a beautiful muse goddess image. This moonstone has wonderful chatoyancy changing the stone from clear to periwinkle blue in certain lighting giving it a magical shimmer. I have never seen one similar, even in photos! Museum quality enamel work frames the moonstone is cobalt blue and emerald green, highlighting...