An emerald amulet (u) can be made at level 31 Crafting by using a gold bar on a furnace while carrying a cut emerald and an amulet mould. This grants the player 70 Crafting experience. The amulet can then be strung with a ball of wool to create a strung emerald amulet, granting an additional 4 experience. The strung amulet can be enchanted into an amulet of defence using the Lvl-2 Enchant spell, requiring level 27 Magic.
This amulet can also be strung with a magic string instead, turning it into a pre-nature amulet. This amulet can then be enchanted into an amulet of nature.