A Talisman

Article

tal·is·man
ˈtaləsmən,ˈtalizmən/
noun
noun: talisman; plural noun: talismans

an object, typically an inscribed ring or stone, that is thought to have magic powers and to bring good luck.
synonyms: lucky charm, charm, fetish, amulet, mascot, totem, juju
"this talisman has been in our family for more than twelve generations"