These beautiful cobalt seaglass specimens are set in our signature 24kt gold dipped setting, complete with 14kt gold fill chain and clasp. This rare Cobalt Blue colored glass dates back to the 1880s, when this blue coloration was used primarily for medicinal bottles or poison bottles. Why buy from Flotsam & Co? Flotsam & Co. is the original designer to use this unique 24kt Gold Dipped or “Electroplated” process with found items like sunrise shells, seaglass, shark’s teeth and other sea treasure! We are both the divers as well as the artists, and all of our pieces are handmade in our studio. We treat each piece like a work of art— and no two are the same. MATERIALS | ✦ Genuine Cobalt Blue Seaglass Metal ✦ 24kt Gold Dipped (Gold Electroplated setting) with 14kt Gold Fill Chain