Gem tag

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For a list of skill gems ordered by gem tags, see List of skill gems by gem tag.
For a list of support gems ordered by gem tags, see List of support gems by gem tag.
A gem with the tags "Aura", "Spell" and "AOE"

All gems have gem tags (also called keywords) listed in the first line of the mouseover description. They are used for dividing the gems into groups and to clarify which type a skill/support is. They do not indicate which modifier (or stats) apply to a skill however.[1]

Mechanics

Gem tags only group gem into categories, so specific effects like +x Level of Socketed <gem tag> Gems can apply to them, or interactions with specific subcategories of gems like Prismatic or Arcane.

Gem tags are properties of the gem item, and not properties of the skill(s) granted by the item, though typically at least one skill granted by a gem will have those properties. For example, the gem StormbindStormbindSpell, AoE, Channelling, Lightning, Duration, Arcane
Level: (1-20)
Cost: (3-5) Mana
Cast Time: 0.12 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 160%
Requires Level 28Channel to spread runes on the ground in a growing pattern. The runes fade away after a duration, or will be immediately removed and deal damage in a circular area when detonated by Rune Blast. Enemies standing on the runes are Hindered, reducing their movement speed.Deals (36-444) to (107-1332) Lightning Damage
Base duration is 12.00 seconds
50% reduced Movement Speed
Runes have 30% more Area of Effect per Improvement
Runes deal 100% more Damage with Hits and Ailments per Improvement
A Rune is Improved for each (5-24) Mana Spent
Runes can be improved 3 times

Additional Effects From 1-20% Quality:
Runes have +(0.5-10)% more Area of Effect per Improvement
(0.5-10)% increased Cast Speed
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
has the gem tag 'Arcane' and grants two skills: Stormbind itself, which is not arcane and can be supported by Archmage SupportArchmage SupportLightning, Arcane, Support, Spell
Icon: ^
Level: (1-20)
Requires Level 31Supports spell skills that deal damage with hits and have no reservation. Cannot support arcane skills, Brand skills, Orb skills, Vaal skills, or skills used by totems, traps or mines. Cannot modify the skills of minions.Supported Skills gain Added Lightning Damage equal to (10-19)% of Unreserved Maximum Mana
Supported Skills have added Mana Cost equal to 5% of Unreserved Maximum Mana

Additional Effects From 1-20% Quality:
Supported Skills deal (0.5-10)% increased Spell Damage
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
, and Rune Blast, which is arcane and therefore not supportable by Archmage.

In particular, there are common misconceptions about gem tags:

  • gem tags are only granted by gems; skills granted from items or threshold jewels do not modify gem tags in any way.[2]
  • they cannot be added, changed, or removed.[3]
  • they do not describe which skills can be supported by specific support gems and are not meant to, even if there is often overlap.[2]
  • they do not describe which stats or modifiers apply to a gem.[1]


Overview of gem tags

Category Mainpage Description
AoE Area of effect Skills that have some effects in an area of effect.
Arcane Arcane Skills which care about the amount of mana you have or spend for the purposes of that skill or support.
Attack Attack Skills that hit with unarmed or weapon damage.
Aura Aura Skills that grant or modify auras. An aura is an AOE buff that affects nearby allies or enemies. Many auras reserve a portion of the player's mana pool.
Blessing Blessing skill Blessing skill modify the reservation of the supported aura skill. Only one aura from a Blessing skill can be active at a time.
Blink Blink Travel skills that share a cooldown when used.
Bow Bow Attack skills which require a bow to be used. They implicitly also imply the projectile gem tag.
Brand Brand Spell skills that create magical brands, which attach themselves to an enemy for a duration and activate skills at fixed intervals. Brands count as dealing damage directly.
Chaining Chaining Skills that have the ability to chain by default. Applies to both projectiles and skills that emit chaining beams like ArcArcSpell, Chaining, Lightning
Level: (1-20)
Cost: (8-23) Mana
Cast Time: 0.70 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 120%
Requires Level 12An arc of lightning reaches from the caster to a targeted enemy and chains to other enemies, but not immediately back. Each time the arc chains, it will also chain a secondary arc to another enemy that the main arc has not already hit, which cannot chain further.Deals (6-198) to (32-1122) Lightning Damage
Chains +(4-7) Times
15% more Damage with Hits and Ailments for each remaining Chain

Additional Effects From 1-20% Quality:
Chains +(0.05-1) Times
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
.
Channelling Channelled skill Skills which can be held down to be used continuously. Channelling skills often provide greater effects after being used for a certain duration.
Chaos Chaos Damage Chaos is one of the five damage types. Chaos damage cannot be reflected and ignores energy shield by default.
Cold Cold Damage Cold is one of the five damage types.
Critical Critical strike Skills which affect your critical strikes, or provide effects on critical strike.
Curse Curse These skills apply a special type of debuff to enemies. By default, you can only apply one curse per target unless you increase the curse limit.
Duration Duration Certain skills have an effect over time or activate after the duration. In some cases, such as curses, reusing the skill will reset the timer.
Exceptional Exceptional support gem Gem tag reserved for Empower SupportEmpower SupportExceptional, Support
Icon: +
Level: (1-3)
Cost & Reservation Multiplier: 130%
Supports any skill gem. Once this gem reaches level 2 or above, will raise the level of supported gems. Cannot support skills that don't come from gems.+(0-2) to Level of Supported Skill Gems

Additional Effects From 1-20% Quality:
This Gem gains (5-100)% increased Experience
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
, Enhance SupportEnhance SupportExceptional, Support
Icon: +
Level: (1-3)
Cost & Reservation Multiplier: 120%
Supports any skill gem. Once this gem reaches level 2 or above, will raise the quality of supported gems. Cannot support skills that don't come from gems.+(0-16)% to Quality of Supported Skill Gems

Additional Effects From 1-20% Quality:
This Gem gains (5-100)% increased Experience
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
, and Enlighten SupportEnlighten SupportExceptional, Support
Icon: +
Level: (1-3)
Cost & Reservation Multiplier: (100-92)%
Supports any skill gem. Once this gem reaches level 2 or above, will apply a cost & reservation multiplier to supported gems. Cannot support skills that don't come from gems.
Additional Effects From 1-20% Quality:
This Gem gains (5-100)% increased Experience
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
, as well as their awakened variants.
Fire Fire Damage Fire is one of the five damage types.
Golem Golem Golems are a type of minion that provide a buff to the summoner while active.
Guard Guard Skill Skills with defensive buffs. These all share the same cooldown.
Herald Herald Skills which reserve mana to provide a player with a permanent buff.
Hex Hex Skills that apply a type of temporary curse or interact with hexes. Hexes can be turned into auras or ground effects.
Lightning Lightning Damage Lightning is one of the five damage types.
Link Link skill Skills which target other players to apply buffs or trigger effects while linked. The link breaks if the target moves out of range or breaks line of sight. If the linked target dies, the user also dies.
Mark Mark Skills that apply a type of permanent curse. Only a single mark can affect a target at one time.
Melee Melee Skills which deal melee damage. Some melee skills require certain weapon types.
Mine Mines Skills which throw mines which need to be remotely detonated. Note that most spells or projectile attacks can be turned into a mine with the Blastchain Mine SupportBlastchain Mine SupportSupport, Mine
Icon: Y
Level: (1-20)
Cost & Reservation Multiplier: 50%
Requires Level 8Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.Supported Attack Skills cannot be used with Melee Weapons
Supported Skills deal (59-53)% less Damage
Mine lasts 5 seconds
Supported Skills have a Base Mine Detonation Time of 0.25 seconds
Supported Skills gain a Base Reservation equal to Base Mana and Life Cost
Supported Skills deal 5% more Damage for each prior Mine in Detonation Sequence

Additional Effects From 1-20% Quality:
(0.5-10)% increased Mine Damage
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
or High-Impact Mine SupportHigh-Impact Mine SupportMine, Support, AoE, Aura
Icon: Y
Level: (1-20)
Cost & Reservation Multiplier: 50%
Requires Level 31Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.Supported Attack Skills cannot be used with Melee Weapons
Mine lasts 5 seconds
Supported Skills gain a Base Reservation equal to Base Mana and Life Cost
Supported Skills have a Base Mine Detonation Time of 0.25 seconds
Supported Skills deal (56-50)% less Damage
Each Mine from Supported Skills applies 2% chance to deal Double Damage to Hits against Enemies near it, up to a maximum of 100%

Additional Effects From 1-20% Quality:
(0.5-10)% increased Mine Damage
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
support gems.
Minion Minion Skills let characters that create or affect minions.
Movement Movement Skills that affect movement speed or deals damage while moving.
Nova Nova Skills with an area of effect centered around the user.
Orb Orb Skills which last for duration and have a periodic effect in an area, and is not targetable by enemies.
Prismatic Prismatic Skills which pick a random element to attack with, avoiding choosing the same element twice in a row.
Projectile Projectile Skills that can create projectiles.
Physical Physical damage Physical damage is one of the five damage types.
Retaliation Retaliation Skills which become briefly Usable when a certain condition is met, namely blocking or taking damage.
Slam Slam Melee skills that hit the ground to deal area of effect damage.
Spell Spells Skills that do not scale with weapon damage.
Strike Strike Melee skills that hit one or more specific targets within melee strike range. Strike skills can be enhanced by increasing additional strike targets or supported by Melee Splash SupportMelee Splash SupportSupport, Melee, Attack, Strike, AoE
Icon: S
Level: (1-20)
Cost & Reservation Multiplier: 130%
AoE Radius: 14
Requires Level 8Supports melee strike skills, causing their melee strike to deal splash damage around each target hit.Supported Skills deal Splash Damage to surrounding targets
Supported Skills deal 40% less Splash Damage to surrounding targets
Supported Skills have (0-57)% more Melee Splash Area of Effect

Additional Effects From 1-20% Quality:
Supported Skills have (0.5-10)% increased Area of Effect
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
to create AoE effect which can overlap multiple enemies.
Support Support gem Gems which support skills, enhancing or modifying their effects.
Stance Stance Skills that give the player a set of buffs that can be swapped between each other. Currently, Blood Stance and Sand Stance are the only Stances in the game.
Totem Totem Skills which place stationary totems to use various skills indirectly. Note that most spells and bow/wand attacks can be turned into a totem with the Spell Totem SupportSpell Totem SupportSupport, Spell, Totem
Icon: T
Level: (1-20)
Cost & Reservation Multiplier: 200%
Requires Level 8Supports spell skills that are not triggered. Instead of casting that spell, you will summon a totem that casts the spell for you.Supported Skills deal (49-40)% less Damage
Supported Skills will summon a Totem which uses that Skill
Totem lasts 8 seconds
Supported Skills have 40% less Cast Speed

Additional Effects From 1-20% Quality:
Supported Skills have (0.5-10)% increased Totem Placement speed
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
or Ballista Totem SupportBallista Totem SupportBow, Projectile, Support, Totem
Icon: R
Level: (1-20)
Cost & Reservation Multiplier: 120%
Requires Level 8Supports any bow or wand attack skill, causing it to summon a ballista totem that uses the skill for you.Supported Attack Skills cannot be used with Melee Weapons
Supported Skills deal (32-24)% less Damage
Supported Skills will summon a Ballista Totem which uses that Skill
Totem lasts 8 seconds
Supported Skills have +2 to maximum number of Summoned Ballista Totems
Supported Skills have 50% less Attack Speed

Additional Effects From 1-20% Quality:
Supported Skills have (0.5-10)% increased Totem Placement speed
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
support gems respectively.
Trap Trap Skills which throw a trap that triggers based on enemy proximity or after its duration expires. Note that most spells or projectile attacks can be turned into a trap with the Trap SupportTrap SupportSupport, Trap
Icon: T
Level: (1-20)
Cost & Reservation Multiplier: 120%
Requires Level 8Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a trap that will use the skill for you when an enemy walks near it. Traps cannot use channelling skills.Supported Attack Skills cannot be used with Melee Weapons
Trap lasts 4 seconds
Supported Skills deal (20-6)% less Trap Damage
Supported Skills have (0-19)% increased Trap Throwing Speed

Additional Effects From 1-20% Quality:
Supported Skills deal (0.5-10)% increased Trap Damage
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
support gem.
Travel Travel Skills that directly affect a player's position or phasing status.
Trigger Trigger Skills that cannot be used directly, and instead are used indirectly under specific conditions.
Vaal Vaal skill Skills need to be charged with Vaal Souls from kills or hits against rare or unique enemies in order to use them but are typically stronger or provide different effects than their base skill.
Warcry Warcry Warcries are skills that taunt nearby enemies and grant a warcry buff effect. Warcries typically gain Power that scales with the number and rarity of nearby enemies, which increases the buff's effects. Most warcries also cause your next few attacks to be exerted, giving them additional effects. Warcries are not considered spells or attacks and cannot be supported by trigger gems.

Modifiers that increase level of socketed gems based on gem tags

NameFor generated item/monster modifiers the minimum item/monster level respectively. Some generation types may not require this condition to be met, however item level restrictions may be raised to 80% of this value.StatsSpawn Weighting
The Shaper's80+1 to Level of Socketed Skill Gemsbody_armour_shaper 400
Warlord's80+1 to Level of Socketed Skill Gemsbody_armour_adjudicator 250
Fletcher's9+1 to Level of Socketed Bow Gemsbow 1000
Sharpshooter's64+2 to Level of Socketed Bow Gemsbow 1000
Nihilist's4+1 to Level of Socketed Chaos Gemsattack_staff 1000
attack_dagger 1000
Anarchist's55+2 to Level of Socketed Chaos Gemsattack_staff 1000
attack_dagger 1000
Hunter's68+2 to Level of Socketed Chaos Gemsboots_basilisk 500
Frost Weaver's2+1 to Level of Socketed Cold Gemsattack_staff 1000
attack_dagger 1000
Winterbringer's55+2 to Level of Socketed Cold Gemsattack_staff 1000
attack_dagger 1000
Redeemer's68+2 to Level of Socketed Cold Gemsboots_eyrie 500
Flame Spinner's2+1 to Level of Socketed Fire Gemsattack_staff 1000
attack_dagger 1000
Lava Caller's55+2 to Level of Socketed Fire Gemsattack_staff 1000
attack_dagger 1000
Warlord's68+2 to Level of Socketed Fire Gemsboots_adjudicator 500
Thunder Lord's2+1 to Level of Socketed Lightning Gemsattack_staff 1000
attack_dagger 1000
Tempest King's55+2 to Level of Socketed Lightning Gemsattack_staff 1000
attack_dagger 1000
Crusader's68+2 to Level of Socketed Lightning Gemsboots_crusader 500
Combatant's8+1 to Level of Socketed Melee Gemsbow 0
wand 0
focus 0
shield 1000
weapon 1000
Weaponmaster's63+2 to Level of Socketed Melee Gemsbow 0
wand 0
focus 0
shield 1000
weapon 1000
The Elder's80+1 to Level of Socketed Support Gemsbody_armour_elder 400
Redeemer's80+1 to Level of Socketed Support Gemsbody_armour_eyrie 250
Subterranean1+2 to Level of Socketed Chaos Gemsabyss_jewel 0
jewel 0
boots 2000
Subterranean1+2 to Level of Socketed Cold Gemsabyss_jewel 0
jewel 0
boots 2000
Subterranean1+2 to Level of Socketed Fire Gemsabyss_jewel 0
jewel 0
boots 2000
Subterranean1+2 to Level of Socketed Lightning Gemsabyss_jewel 0
jewel 0
boots 2000
of the Underground1+1 to Level of Socketed Dexterity Gemsabyss_jewel 0
jewel 0
staff 750
sceptre 750
mace 750
axe 1000
sword 1000
bow 1600
dagger 1000
claw 1000
wand 750
str_armour 750
int_armour 750
dex_armour 1600
str_dex_armour 1000
str_int_armour 750
dex_int_armour 1000
str_dex_int_armour 1000
unset_ring 1000
of the Underground1+1 to Level of Socketed Intelligence Gemsabyss_jewel 0
jewel 0
staff 1000
sceptre 1000
mace 750
axe 750
sword 750
bow 750
dagger 1000
claw 1000
wand 1600
str_armour 750
int_armour 1600
dex_armour 750
str_dex_armour 750
str_int_armour 1000
dex_int_armour 1000
str_dex_int_armour 1000
unset_ring 1000
of the Underground1+1 to Level of Socketed Strength Gemsabyss_jewel 0
jewel 0
staff 1000
sceptre 1000
mace 1600
axe 1000
sword 1000
bow 750
dagger 750
claw 750
wand 750
str_armour 1600
int_armour 750
dex_armour 750
str_dex_armour 1000
str_int_armour 1000
dex_int_armour 750
str_dex_int_armour 1000
unset_ring 1000
Catarina's60+2 to Level of Socketed Support Gems
+(5-8)% to Quality of Socketed Support Gems
weapon 2000
shield 2000
Chosen60+0.2 metres to Melee Strike Range
+2 to Level of Socketed Melee Gems
helmet 1500
gloves 1500
Chosen60Projectiles Pierce an additional Target
+2 to Level of Socketed Projectile Gems
helmet 1500
gloves 1500
Chosen60(8-10)% increased Area of Effect
+2 to Level of Socketed AoE Gems
helmet 1500
gloves 1500

Version history

Version Changes
3.16.0
  • Added Critical gem tag.
3.15.0
  • Added Prismatic, Arcane gem tags.
3.13.0
  • Added Orb gem tags.
3.12.0
  • Added Hex and Mark gem tags.
3.11.0
  • Added Slam gem tag
  • Added Stance gem tag. [Undocumented This change was not documented by any official sources. It was discovered through player testing or datamining.]
3.7.0
  • Added Physical, Guard, Strike, Blink gem tags.
Unknown
  • Introduced to the game.

References

  1. 1.0 1.1 Mark_GGG (June 14, 2016). "Mechanical Questions Thread". Official Path of Exile Forums. Retrieved June 14, 2016.
  2. 2.0 2.1 Mark_GGG (April 03, 2017). "Some Mechanics questions answered by Mark". Reddit. Retrieved April 03, 2017.
  3. https://www.reddit.com/r/pathofexile/comments/bv0j8g/questions_thread_may_31_2019/eq17dqx/?context=1