Collected over two years, I finally had enough of these rare, delicately-marked little Limpets to make a necklace with the flag-shaped Aquamarine beads I found years ago. The largest Limpet sports a fine-quality faceted Aquamarine stone. The shells are set in Sterling Silver with 19-karat gold coating (Vermeil). This is a dignified and beautiful necklace that sits at a jewel neckline. 18"