Cowrie shell necklace on black leather. Item is 9” when closed and with a hook closure. Cowrie or cowry is the common name for a group of small to large sea snails. Place cowrie shells on your altar or use them in spells for fertility, birth, sexuality, and menstruation. Beyond its feminine ties, the cowrie shell also represents prosperity. This shell was used as a form of currency in parts of Africa and has since been regarded as a symbol of prosperity.