Onyx necklace

The Onyx necklace is made by using a gold bar, an onyx and a necklace mould on a furnace. It requires a crafting level of 82 and provides 120 experience when made. It is not recommended to make onyx necklaces as the cost of the onyx itself is significantly greater than the price of the necklace.

Grum's Gold Exchange in Port Sarim doesn't buy or sell Onyx rings, necklaces, or amulets.

At 87 magic, the onyx necklace can be enchanted into a berserker necklace by members.

Trivia

 * The Gold bar used to make this seems to have been coloured the exact same colour as the Onyx itself.
 * The Onyx necklace looks similar to the "beads of the dead" obtained during the Shilo Village quest.