A diamond amulet is made by using a gold bar, a diamond and an amulet mould on a furnace. With a requirement of a Crafting level of 70, it is the highest level object that a free player can make with Crafting, and provides 100 experience when made. Before it can be worn, an amulet must first be strung using a ball of wool or the Lunar spell String Jewellery. Stringing provides 4 Crafting experience.
The diamond amulet can be enchanted into an amulet of power through the use of the Enchant Level 4 Jewellery spell, which requires 10 earth runes and 1 cosmic rune. Unenchanted amulets provide no stat bonuses.