Measuring 17 1/4 inches in overall length; featuring twenty eight, 7.0mm, turquoise* cabochons set "Riviere style" into enamel** granulated flowers. Engraved fancy open link, enamel chain with a hidden box clasp. Trace safety chain with a spring ring clasp (from a later date). Fashioned in 18k yellow gold. French hallmarks, circa 1870. *Turquoise should be kept out of contact with moisture as it can discolor. **Although vitreous enamel forms a hard, durable surface, it is susceptible to chipping and breaking upon impact.