Necklace Shell Dangle Nautical White Gold Tone

Beautiful cut shell necklace Multi Silver/Gold tone with shell details & pendant Closure may have been replaced? Please see pictures Approx 22" chain ~ Hanging overall length 17" ~ Pendant alone is 5.5" Very beachy/Nautical themed Estate find, so unsure of exact materials, age ect Coloring may vary slightly due to camera and lighting I ship fast! Box 1