My daughter and I used to hunt for shells on the beach when she was little and found a giant limpet shell which I have always kept and was my inspiration for this design.  The elegant oval shape is so flattering to wear.  
The Limpet Shell pendant is cast in sterling silver and on a dark brown leather cord. Medim size pendant is 1.75" high and 1" wide.
The additional photo showing it worn is the small size- 1.25" high and 5/8" wide choose size when adding to the cart!