Opal amulet (u)

An opal amulet (u) can be created with level 27 Crafting by using a silver bar on a furnace while also carrying a cut opal and an amulet mould. This will grant 55 Crafting experience.

A ball of wool can be used on the unstrung amulet to create a strung opal amulet, which can then be enchanted at level 7 Magic using the Lvl-1 Enchant spell to create an amulet of bounty.