Obtained new, the necklace comes with 10 charges. For every 10 minutes of skilling or combat, the necklace will use up one of its charges. Every time a charge is used, the player has a 10% chance of receiving a reward from the reward table. If the player doesn't win a reward, player will be rewarded with coins equal to the content of a small cash bag. This item will also act as a substitute to the Crystal amulet if you own one, giving you one Crystal motherlode shard after one hour of skilling.