Unbelievable but true! This shell is millions of years old, slowly turning to stone and becoming encrusted in sparkling druzy crystals. Shells which are covered on the front and back and in mostly white are even more uncommon. Set in oxidized sterling silver with prongs and chain loop in 14k gold, this shell measures just over 1.5 inches long and could be on any length chain you wish, just let me know your preferred length at check out.