List of skill gems rewarded from quests

This is a list of every gem in the game related to a quest and the related quests when they become available. Once the required quest is cleared, it shows which classes are initially offered the gem as a quest reward.

Players can also purchase the gem from vendors afterwards for a small amount of currency. Depending on the gem, initially only a limited variety of classes (usually including the classes that could choose it as a reward, and those classes from their neighbouring stats) can buy it. However two certain vendors will sell these gems to all classes after completing a quest for them: Siosa will also sell all gems from Acts 1-3, and Lilly Roth will sell all gems in the game (Acts 1-10). There are a few gems in the game that are not quest-related, and all these exceptions are listed at Drop Only Gems.

Gems

Item	Quest rewards	Vendor rewards
Advanced Traps SupportAdvanced Traps SupportTrap, Support Icon: R Level: (1-20) Cost & Reservation Multiplier: 130%Requires Level 31Supports skills which throw traps.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Trap DamageSupported Skills have 1% increased Area of EffectSupported Skills have 0.5% increased Skill Effect DurationSupported Skills have (50-107)% increased Cooldown Recovery Rate for throwing Traps Supported Skills have (10-29)% increased Skill Effect Duration Supported Skills have (15-34)% increased Trap Throwing SpeedThis 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 Active Skill Gem you wish to augment. Right click to remove from a socket.	N/A	Act 3 after A Fixture of Fate from Clarissa with Ranger, Scion, Shadow, Witch. Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Clarissa with Ranger, Scion, Shadow, Witch. Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Siosa with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character.
Caustic ArrowCaustic ArrowAttack, Projectile, AoE, Duration, Chaos, Bow Level: (1-20) Cost: (6-10) Mana Attack Damage: (55-64)% of base Effectiveness of Added Damage: (55-64)% Projectile Speed: 3260 Radius: 20Fires an arrow which deals chaos damage in an area on impact, and spreads caustic ground. Enemies standing on the caustic ground take chaos damage over time.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Area of Effect1% chance to inflict Withered for 2 seconds on Hit1% of Physical Damage Converted to Chaos DamageDeals (55-64.4)% of Base Attack Damage Base duration is 2 seconds Deals (8.8-1927.1) Base Chaos Damage per second 60% of Physical Damage Converted to Chaos Damage Modifiers to Projectile Damage apply to this Skill's Damage Over Time effect +(0-6) to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.	N/A	Act 1 after Enemy at the Gate from Nessa with Duelist, Ranger, Scion, Shadow. Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Siosa with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character.
Shrapnel BallistaShrapnel BallistaAttack, Projectile, Totem, Physical, Bow Level: (1-20) Cost: (5-11) Mana Attack Speed: 50% of base Attack Damage: (38-44)% of base Effectiveness of Added Damage: (38-44)%Summons a ballista totem that fires multiple arrows with extreme force, breaking them apart into shrapnel. Enemies can be hit by multiple arrows from the same attack.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Projectile SpeedChains +0.1 TimesProjectiles Pierce 0.1 additional Targets0.5% increased Attack SpeedDeals (38-44)% of Base Attack Damage Totem lasts 8 seconds Fires 2 additional Arrows +(2-3) to maximum number of Summoned Ballista Totems (2-56) to (3-85) Added Attack Physical DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.	N/A	Act 1 after Breaking Some Eggs from Nessa with Duelist, Marauder, Ranger, Scion, Shadow. Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Siosa with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character.
Spectral ThrowSpectral ThrowAttack, Projectile Level: (1-20) Cost: (7-9) Mana Attack Speed: 110% of base Projectile Speed: 1000Throws a spectral copy of your melee weapon. It flies out and then returns to you, in a spinning attack that damages enemies in its path.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Attack Speed1% increased Projectile Speed0.5% reduced Projectile Speed Fires an additional ProjectileDeals (80-100)% of Base Attack DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.	N/A	Act 1 after Enemy at the Gate from Nessa with Duelist, Marauder, Ranger, Scion, Shadow, Templar. Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Siosa with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character.
Added Chaos Damage SupportAdded Chaos Damage SupportChaos, Support Icon: H Level: (1-20) Cost & Reservation Multiplier: 130%Requires Level 31Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Chaos DamageSupported Skills Penetrate 0.25% Chaos ResistanceSupported Skills have 1% of Physical Damage Converted to Chaos DamageSupported Skills have (17-170) to (26-255) added Chaos DamageThis 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 Active Skill Gem you wish to augment. Right click to remove from a socket.	N/A	Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Siosa with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character.
Elemental Proliferation SupportElemental Proliferation SupportCold, Fire, Lightning, Support, AoE Icon: S Level: (1-20) Cost & Reservation Multiplier: 120%Supports any skill that hits enemies, or could otherwise apply elemental ailments.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Duration of Elemental Ailments on EnemiesSupported Skills have 1% increased Area of EffectSupported Skills deal 1% increased Damage with Hits and Ailments per Freeze, Shock or Ignite on EnemyElemental Ailments caused by Supported Skills spread to other enemies in a Radius of (12-15) Supported Skills have 20% chance to Freeze, Shock and Ignite (0-19)% increased Duration of Elemental Ailments on EnemiesThis 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 Active Skill Gem you wish to augment. Right click to remove from a socket.	N/A	Act 1 after Enemy at the Gate from Nessa with Templar. Act 1 after Mercy Mission from Nessa with Scion, Shadow, Witch. Act 3 after A Fixture of Fate from Siosa with any character. Act 6 after Fallen from Grace from Lilly Roth with any character.
Meat Shield SupportMeat Shield SupportSupport, Minion Icon: v Level: (1-20) Cost & Reservation Multiplier: 130%Requires Level 31Supports skills which create Minions.Per 1% Quality:1Superior2Anomalous3DivergentMinions from Supported Skills have 0.25% additional Physical Damage ReductionMinions from Supported Skills deal 0.25% more Damage to Enemies that are Near youMinions from Supported Skills have +0.4% Chance to Block Attack DamageMinions from Supported Skills take (15-24)% less Damage Minions from Supported Skills deal (20-30)% more Damage to Enemies that are Near you Minions from Supported Skills have 20% chance to Taunt on Hit Supported Skills have (10-29)% increased Minion Movement Speed Minions from Supported Skills are DefensiveThis 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 Active Skill Gem you wish to augment. Right click to remove from a socket.	N/A	Act 3 after A Fixture of Fate from Clarissa with Scion, Templar, Witch. Act 3 after A Fixture of Fate from Siosa with any character. Act 6 after Fallen from Grace from Lilly Roth with any character.
Spell Cascade SupportSpell Cascade SupportAoE, Spell, Support Icon: p Level: (1-20) Cost & Reservation Multiplier: 140%Supports spell skills that apply an effect to an area around a targeted location. Cannot support Vaal skills, minion skills, or skills used by totems, traps, or mines.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Area of EffectSupported Skills deal 0.5% increased DamageSupported Skills have 1% increased Area of Effect Supported Skills have 5% increased delay between affected AreasSupported Area of Effect Skills also affect areas in front of and behind the targeted area Supported Skills have (25-16)% less Area of Effect Supported Skills deal (40-21)% less DamageThis 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 Active Skill Gem you wish to augment. Right click to remove from a socket.	N/A	Act 1 after Mercy Mission from Nessa with Scion, Shadow, Templar, Witch. Act 3 after A Fixture of Fate from Siosa with any character. Act 3 after A Fixture of Fate from Siosa with any character. Act 6 after Fallen from Grace from Lilly Roth with any character. Act 6 after Fallen from Grace from Lilly Roth with any character.