Skarja's HeartstoneEquipment 13
Source Pathfinder #153: Life's Long Shadows
Price 2,500 gp
Weight negligible
This pale gemstone grants its wearer a +2 item bonus to saving throws and the ability to discern a target's alignment (as Detect Alignment, but can detect chaotic, evil, good, and lawful auras simultaneously) at will by peering through the gemstone.
Like all hag heartstones, this gemstone is powered by Skarja's spirit. Skarja does not need to wear her heartstone to benefit from its powers, but she cannot use them if she hasn't touched her heartstone in the past 7 days. If Skarja's heartstone is separated from her for more than 7 days (or if she's been dead for 7 days), it becomes a non-magical gemstone.
Note: Item is worth 1000 gp when non-magical
Skarja's heartstone allows her to use additional occult innate spells: Ethereal Jaunt (9th level) and Bind Soul at will, Shadow Blast (6th level) twice per day, and Spirit Blast once per day.
Activate 
command
Requirements You must be touching the heartstone.
Effect The heartstone attempts to counteract one disease affecting you (counteract level 7, counteract modifier 1d20+23).
Craft Requirements You must be a night hag.
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.
AbjurationEffects and magic items with this trait are associated with the abjuration school of magic, typically involving protection or wards.
InvestedA character can wear only 10 magical items that have the invested trait. None of the magical effects of the item apply if the character hasn't invested it, nor can it be activated, though the character still gains any normal benefits from wearing the physical item (like a hat keeping rain off their head).
OccultThis magic comes from the occult tradition, calling upon bizarre and ephemeral mysteries. Anything with this trait is magical.