Unholy Symbol of Zamorak

A  is a piece of jewellery the can be made with the Crafting skill. It is made by using a silver bar on a furnace while having a unholy mould in your inventory. You then use a ball of wool on it to string it. It can be crafted at level 17 and provides 50 experience. After it has been crafted it must be cursed by the Spirit of Scorpius who haunts the graveyard north of the Observatory. He will only curse the symbol if the player has completed the Observatory Quest.