Dota 2 Wiki

Gem of True Sight is an item purchasable at the Base Shop, under Miscellaneous.

Available in the Base Shop
Gem of True Sight
Gem of True Sight icon.png
Not one thrall creature of the depths,
Nor spirit bound in drowning's keep,
Nor Maelrawn the Tentacular,
Shall rest till seas, gem comes to sleep.
Cost 900 Gold
Sell Value Full price refunded within 10s. 450 Gold
Stock 1 INIT / 1 MAX
10 minutes 600
Active Reveal
Passive ? True Sight
Bonus ?
Shareable Partially Partially
Destroyable No
Usage Alert ? No
Gem of True Sight (900)

Additional Information[]

  • Gem of True Sight drops when its wielder dies, unless they have available Reincarnation sources.
  • This item cannot be put into the backpack.


Pierces spell immunity.
Gives True Sight over a 300 radius revealing wards and units even in Fog of War.
Cast Range: 300
Radius: 300
Duration: 4
Aura Linger Duration: 0.5
Cooldown: 12
Mana: 0
Modifiers [?]


  • The effects are provided by an aura, the modifier lingers for 0.5 seconds.
  • Cannot detect units under the effect of Shadow Dance, but can detect units affected by other sources of True Sight immunity.
  • The visual effect created at the target area is visible to the casting team only. The sound is audible to both teams.

True Sight
Cannot be used by illusions. Pierces spell immunity.
Grants the ability to see invisible units and wards to any allied vision within 900 range of its carrier.
Radius: 900
Aura Linger Duration: 0.5
Modifiers [?]


  • The True Sight is provided within 900 radius, regardless of the carrier's actual vision. It is fully unobstructed.
    • Its effect is provided by an aura and debuff lingers for 0.5 seconds.
    • True Sight does not work when the item is in the inventory of a Animal Courier Radiant minimap icon.png Courier or Lone Druid Spirit Bear icon.png Spirit Bear.


  • Gem of True Sight is a risky investment, due to it dropping on death and potentially giving the enemy a free Gem. Therefore, this item should only be bought when having enough survivability and when other True Sight items are not enough.
  • Although often purchased by supports, Gem of True Sight is better carried by more resilient tanks and initiators, who are less likely to die and lose it.
  • In the early game, when heroes are more stationary farming the lanes, Sentry Ward icon.png Sentry Wards are a far more efficient way to avoid being ganked by invisible heroes.
  • Due to the True Sight being a passive aura, it constantly reveals nearby invisible enemies, making it the most cost effective revealing item, hence the heavy drawback.
  • Gem of True Sight can still sometime be a worthwhile investment when the enemy has no invisible heroes. It is ideal to reliably remove enemy Observer and Sentry Wards 1 icon.png Observer and Sentry Wards over a long term, as the only alternative item to do this are Sentry Wards, but they can be easily wasted if the enemy ward locations are unknown.
  • Gem of True Sight can be cast on ward spots to reveal and detect Observer Wards and Sentries.



Recent Changes[]

Exposes and grants True Sight over units within a targeted area for a short time.
Cast range: 300
Radius: 300
Duration: 4
Cooldown: 12
Notes: Creates a temporary aura at the target area that exposes enemies and provides True Sight over them. The aura's modifier lingers for 0.5 seconds.
  • Now provides 300 radius ground vision and True Sight around the location Gem of True Sight icon.png Gem of True Sight is dropped, for the last team that dropped it. Lasts until picked up.