Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 Mini Limpet Shell Necklace $72.00 Cast in sterling silver from a real limpet shell. Suspended on a 1mm double rope sterling chain. Chain Length: 16" 18" Add To Cart Added! Cast in sterling silver from a real limpet shell. Suspended on a 1mm double rope sterling chain.