The Saarthal Amulet is an enchanted amulet found in The Elder Scrolls V: Skyrim during the quest "Under Saarthal." It has the same appearance as the Gauldur Amulet after the latter is pieced back together. The amulet decreases the cost of spells by 3%.
After finding the amulet, it will "point" the Dragonborn towards a wall that can be broken. This will continue the quest. The wall cannot be broken until the amulet is equipped.