Split dragontooth necklace

The Split dragontooth necklace is a Dungeoneering reward that was released along with the Warped floors. The necklace can be purchased from the rewards trader for 17,000 Dungeoneering Tokens, and requires 60 Prayer and 60 Dungeoneering to purchase.

While wearing the necklace, a player can regenerate 1 Prayer point per Bone, Burnt bone, or Bat bone buried, and 2 points for each Big bone, Baby dragon bone or Wyvern bone buried. This item is notable for having an even larger prayer bonus (+11) than a God stole (+10). Combined with the Bonecrusher in locations where low-hp aggressive monsters frequently drop bones, this could be quite useful. The only item worn in the neck slot that has a higher prayer bonus is the Demon Horn Necklace.

Trivia

 * The value of this item is 18,500 coins according to the Items Kept on Death screen.