Quality

Quality applies to armor, weapons, flasks, and gems; in short, all equipment aside from belts and jewelry. It always varies from 0% (at which point it is not displayed on the item) to +20%, and each item type has a currency item associated with it to increase its quality. Quality can be an extremely important method of improving items, as it does not affect the requirements for using an item or the mana cost of skills.

All items are capped at +20% quality and each quality improving item will improve Normal (White) items by 5% each, Magic (Blue) items by 2%, and Rare (Yellow) and Unique (Orange) items by 1%.

The Orb of FusingOrb of FusingStack Size: 20Reforges the links between sockets on an itemRight click this item then left click a socketed item to apply it. The item's quality increases the chances of obtaining more links. and Jeweller's OrbJeweller's OrbStack Size: 20Reforges the number of sockets on an itemRight click this item then left click a socketed item to apply it. The item's quality increases the chances of obtaining more sockets. consume all the quality on an item to increase the chances of rolling more sockets/links.

Armour

On armour (helm, chest piece, gloves, boots, and shield), quality multiplies the Armour rating, Evasion, or Energy Shield rating by the listed percentage. Thus, a piece of armour that naturally gives 100 Armour that has a "100% increased armour" Prefix, and a " +50 to maximum armour" Prefix, would, with +20% quality, give 360 Armour.

(Base Armour100 + Adds Maximum Armour Prefix50)*(1 + Percentage Increased Armour Prefix100%)*(1 + 20%Quality)=360

The quality of pieces of armour may be improved with an Armourer's ScrapArmourer's ScrapStack Size: 40Improves the quality of an armourRight click this item then left click an armour to apply it. Has greater effect on lower-rarity armours. The maximum quality is 20%..

Weapons

Quality weapons have their minimum and maximum damages increased by the listed percentage. Thus, a weapon that normally does 50-100 damage would that has a "100% increased physical damage" Prefix and a "adds 10-20 physical damage" Prefix, with +20% quality, deals 132-264 damage.

(Base minimum damage50 + Adds physical damage prefix10)*(1 + Percentage increased physical damage prefix100% + Quality20%)=132

(Base maximum damage100 + Adds physical damage prefix20)*(1 + Percentage increased physical damage prefix100% + Quality20%)=264

The quality of weapons may be improved with a Blacksmith's WhetstoneBlacksmith's WhetstoneStack Size: 20Improves the quality of a weaponRight click this item then left click a weapon to apply it. Has greater effect on lower-rarity weapons. The maximum quality is 20%..

Flasks

The amount of health and/or mana restored by a health, mana or hybrid flask is improved by the quality percentage. Therefore, a flask which normally restores 100 Life and 50 Mana instead restores 120 Life and 60 Mana if it has +20% quality.

Utility flasks instead have their duration increased by the quality percentage.

The quality of flasks may be improved with a Glassblower's BaubleGlassblower's BaubleStack Size: 20Improves the quality of a flaskRight click this item then left click a flask to apply it. Has greater effect on lower-rarity flasks. The maximum quality is 20%..

Skill Gems

Both active and support skill gems may have quality. Every skill is affected by quality differently, but frequently it somehow improves the damage dealt with the skill. Buffs and curses, obviously, do not have their damage improved. Even those that do have their damage improved will see different rates of improvement for a given amount of quality.

The quality of skill gems may be improved with a Gemcutter's PrismGemcutter's PrismStack Size: 20Improves the quality of a gemRight click this item then left click a gem to apply it. The maximum quality is 20%.. These upgrades always improve a skill's quality by 1%. Alternatively, a level 20 skill gem and a Gemcutter's PrismGemcutter's PrismStack Size: 20Improves the quality of a gemRight click this item then left click a gem to apply it. The maximum quality is 20%. can be sold for a level 1 gem with 20% quality.

Active Gems

Strength

Strength Skills	Magnitude per 1%	Effect
Anger	0.5%	Increased Area of Effect radius
	0.5%	Increased Attack Speed
Decoy Totem	1.5%	Increased Totem Life
	0.5%	Increased Area of Effect radius
	1.5%	Increased Totem Life
	0.3s	Increased Duration
	1.0%	Increased Area of Effect radius
	1.5%	Increased Totem Life
	1.0% 2.0%	Increased Freeze Duration Increased Chill Duration
	1.5%	Increased Stun Duration on enemies
	0.75%	Increased Attack Speed
	0.01s	Increased Base Duration per Endurance Charge
Infernal Blow	1.0%	Increased Area of Effect radius
	1.5%	Increased Stun Duration on enemies
Lightning Strike	3.0%	Chance of Projectiles Piercing
	1.5%	Chance to Ignite enemies on hit with Fire Damage
Punishment	0.5% ~0.3% ~0.15% ~0.1%	Increased Physical Damage reflected by Normal enemies Increased Physical Damage reflected by Magic enemies Increased Physical Damage reflected by Rare enemies Increased Physical Damage reflected by Unique enemies
	1.5%	Increased Totem Life
Searing Bond	1.5%	Increased Totem Life
	0.75%	Increased Damage
	1.5%	Increased Totem Life
	0.5%	Increased Attack Speed
Vitality	0.5%	Increased Area of Effect radius
	1.5%	Chance to grant an Endurance Charge

Dexterity

Dexterity Skills	Magnitude per 1%	Effect
Arctic Armour	0.35%	Increased Movement Speed
	0.75%	Increased Physical Damage
Blood Rage	0.2% 0.75%	Increased Physical Damage from Attacks Leeched back as Life Increased Attack Speed when on Low Life
Burning Arrow	3%	Increased Burn Duration on enemies
	1%	Increased Area of Effect Radius
	3%	Increased Casting speed
	0.5%	Increased Attack Speed
	4%	Increased Critical Strike Chance
Elemental Hit	4%	Increased Critical Strike chance
	0.75%	Increased projectile damage
	1%	Chance to Ignite enemies on hit with Fire Damage
	1.5%	Increased Burning damage
	4%	Increased Critical Strike chance
	0.5%	Increased Area of Effect Radius
Frenzy	0.35%	Increased Attack Speed per Frenzy Charge
Grace	0.5%	Increased Area of Effect Radius
Haste	0.5%	Increased Area of Effect Radius
Hatred	0.5%	Increased Area of Effect Radius
Ice Shot	0.75%	Increased Skill Effect Duration
	1.5%	Increased Shock Duration
Phase Run	1%	Increased Melee Physical Damage
	1%	Increased Area of Effect radius
	0.75%	Chance to Pierce Cursed enemies
	1.5%	Increased Skill Effect Duration
	0.5%	Increased Attack Speed
Split Arrow	0.5%	Increased Attack Speed
Temporal Chains	0.5%	Reduced Movement, Cast, and Attack Speed on Cursed enemies
Viper Strike	1.5% 0.5%	Increased Skill Effect Duration Increased Attack Speed
	0.5%	Increased Attack Speed

Intelligence

Intelligence Skills	Magnitude per 1%	Effect
	0.5%	Chance to Shock enemy on hit with Lightning Damage
	0.75%	Increased Skill Effect Duration
	0.5%	Increased Area of Effect radius
	0.5% 1%	Increased Freeze Duration on enemies increased Chill Duration on enemies
Conductivity	1%	Increased shock duration
Conversion Trap	0.75%	Increased Skill Effect Duration
	1.5%	Increased damage from Critical Strikes
Discharge	1%	Increased Area of Effect radius
Discipline	0.5%	Increased Area of Effect radius
	0.5%	Increased resistance loss
Enfeeble	1.5%	Increased accuracy rating loss
	1.5%	Chance to Ignite enemies on hit with Fire Damage
	0.0015s	Reduced time between fireballs
Flammability	1%	Increased burn duration
	3%	Increased projectile speed
	1%	Increased freeze duration
	0.75 units	Increased wall length
	1%	Increased area of effect radius
	3%	Increased projectile speed
Incinerate	2%	Increased projectile speed
	1.5%	Increased cast speed
Power Siphon	0.75%	Increased damage
	0.5%	Increased Area of Effect radius
Raise Spectre	1.5%	Increased minion speed
	1% 1%	Increased minion speed Increased minion life
	0.75%	Increased spell damage
	1.5% 3%	Chance to shock enemy on hit with lightning damage Increased shock duration
	3%	Increased projectile speed
	0.75%	Increased minion damage
Tempest Shield	0.75%	Increased lightning damage
	0.5%	More physical damage taken
Wrath	0.5%	Increased Area of Effect radius

Other

Other Skills	Magnitude per 1%	Effect
Portal	3%	Increased Cast Speed

Support Gems

Strength

Strength Support Gems	Magnitude per 1%	Effect
	0.75%	Increased Fire Damage
	0.75%	Increased attack speed on Low Life
	0.5%	Increased Cold damage and Increased Fire damage
	0.5%	Increased Fire damage
	0.5%	Increased Chance to Ignite the enemy on hit with Fire Damage
	1%	Increased Skill Effect Duration
	0.75%	Increased Projectile Damage
	0.75%	Increased Spell damage
	0.35%	Increased Quantity of Items Dropped by Slain enemies
	0.5%	Chance to Knock enemies Back on hit
	0.5	Life gained for each enemy hit by your Attacks
	1%	Increased Life Leech rate
	0.5%	Increased Melee Physical Damage
	0.5%	Increased Melee Physical Damage
	1%	Increased Area of Effect radius
	0.5%	Increased Melee Physical Damage
	1.5%	Increased Totem Duration
	0.5%	Reduced Mana Cost
	1.5%	Increased Totem Duration
	1.5%	Increased Stun Duration on enemies
	0.5%	Increased Elemental Damage with Weapons

Dexterity

Dexterity Support Gems	Magnitude per 1%	Effect
	0.5%	Chance to Freeze enemies on hit with Cold Damage
	2%	Increased Critical Strike Chance
	0.75%	Increased Blinding duration
	3%	Increased area effect radius
	1%	Increased Projectile speed
	0.75%	Increased Chance to Cause Monsters to Flee
	0.5%	Increased Cold Damage
	0.5%	Increased Attack Speed and Cast Speed
	0.5%	Increased Attack Speed
	0.5%	Increased Attack Speed and Cast Speed
	0.5%	Increased Projectile damage
	0.5%	Increased Attack Speed and Cast Speed
	0.5%	Increased Attack Speed and Cast Speed
	1%	Increased Mana Leech rate
	0.75%	Increased Chance of Piercing
	0.75%	Increased Projectile damage
	0.5%	Increased Projectile damage
	1.5%	Increased Trap duration

Intelligence

Intelligence Support Gems	Magnitude per 1%	Effect
	0.5%	Increased Chaos damage
	1% 0.5%	Increased Shock duration on enemies Chance to Shock the enemy on hit with Lightning Damage
	1.5%	Increased Burn Duration on enemies
	0.75%	Reduced Mana Cost
	0.5% 0.75%	Increased Chill and Freeze duration Increased Shock and Burn duration
	0.5%	Increased Cast speed
	0.5%	Increased Area of Effect radius
	2%	Increased Critical Strike Multiplier
	1%	Increased Critical Strike Chance
	0.5%	Increased Rarity of Items Dropped by Slain enemies
	0.5%	Increased Lightning damage
	0.3%	Increased Totem and Minion Fire, Cold and Lightning Resistance
	0.75%	Increased Minion damage
	0.75%	Increased Minion life
	0.75%	Increased Minion Movement Speed
	1%	Increased chance to gain a Power Charge on Critical Strike
	0.5%	More Mine Damage

Maps

Quality on maps increases the item quantity modifier. Maps may be improved with a Cartographer's ChiselCartographer's ChiselStack Size: 20Improves the quality of a mapRight click this item then left click a map to apply it. Has greater effect on lower-rarity maps. The maximum quality is 20%..