Cassis pearls come from the *Cassis* mollusks, which are also known as helmet shells. They’re pretty unique because they’re not like the typical pearls you find from oysters.

These pearls form when the mollusk coats an irritant with layers of nacre, just like regular pearls. They can have interesting shapes and colors, making each one special. Since they’re not super common, they’re often considered a cool find for jewelry lovers. If you want something a bit different, Cassis pearls are a great choice!