Gems in Diablo 2 are precious Gem embody innate magical abilities. When set into a Socketed Item these Gems can add powerful magic effects. Higher grades of Gems have stronger effects. There are five grades of Gems: chipped, flawed, standard, flawless, and perfect. Once inserted, Gems cannot be removed from a socket. Touching a gem shrine either produces a gem or upgrades one gem (randomly chosen from your character's inventory) to the next higher grade. The skulls of some demonic creatures, inscribed with eldritch symbols, are said to work much like gems.

Gem effects Stackable

If you place 3 Gems of the same type in a Socketed Sword, you will receive the bonus of all three.

The first Gem that is placed will determine the color of the weapon. If there are several different types of Gems in a sword, it will randomly display an attack based on those types of Gems in the sword. So one swing will show cold damage, while the next shows poison attack but all of them are working at the same time.

The real damage of poison internally is held as damage per frame and duration in frames, in many cases (including gems, skills, items and so on), the true poison damage is actually a non integer number and the shown value is truncated, meaning you can, if the fractions add up, see some "bonus" effects which is in fact not a bonus, just fractions adding up and being shown when the game truncates the poison damage. Once the final damage has been calculated by adding the Emeralds, it does X damage total, over its Y duration.

Upgrading Gems

You can upgrade Gems by using a Gem Shrine or by using the Horadric Cube. You can use the Horadric Cube to convert gems into higher quality gems. Place 3 Gems of one type into the Horadric Cube and hit the Transmute button.

 

All Socketed Items in Diablo 2

shael_rune_diablo_2_wiki_guide_50px
Runes

 

Types of Gems


Sapphires

The Freeze Durations are cumulative.
Weapons: Adds Cold Damage
Shields: Adds Resistance to Cold
Helms and Armor: Adds Maximum Mana


Skulls

Weapons: Adds Mana and Life Steal to attack
Shields: Adds attacker takes damage
Helms and Armor: Adds Mana and Life regeneration


Amethyst

Weapons: Adds to Attack Rating
Shields: Adds to Defense
Helms and Armor: Adds to Strength

 


Emerald

Weapons: Adds Poison Damage
Shields: Adds to Resistance to Poison
Helms and Armor: Adds to Dexterity


Ruby

Weapons: Adds Fire Damage
Shields: Adds Resistance to Fire
Helms and Armor: Adds to Maximum Life


Diamond

Weapons: Adds to Damage vs. Undead
Shields: Adds to all Resistances
Helms and Armor: Adds to Attack Rating


Topaz

Weapons: Adds Lightning Damage
Shields: Adds to Resistance to Lightning
Helms and Armor: Adds Chance to find Magic Items

 

Gems Gallery
Gems Table

 

Gems Gallery

skull_gem_diablo2_wiki_guide_98pxSkulls

chipped_skull_gem_diablo2_wiki_guide_98px
Chipped Skull

 Level Requirement: 1

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Flawed Skull

Level Requirement: 5 

 

skull_gem_diablo2_wiki_guide_98px
Skull

Level Requirement: 12

flawless_skull_gem_diablo2_wiki_guide_98px
Flawless Skull

Level Requirement: 15 

 

perfect_skull_gem_diablo2_wiki_guide_98px
Perfect Skull

 Level Requirement: 18

 

amethyst_gem_diablo2_wiki_guide_98pxAmethysts

chipped_amethyst_gem_diablo2_wiki_guide_98px
Chipped Amethyst

Level Requirement: 1

flawed_amethyst_gem_diablo2_wiki_guide_98px
Flawed Amethyst

Level Requirement: 5

 

amethyst_gem_diablo2_wiki_guide_98px
Amethyst

Level Requirement: 12

flawless_amethyst_gem_diablo2_wiki_guide_98px
Flawless Amethyst

 Level Requirement: 15

 

perfect_amethyst_gem_diablo2_wiki_guide_98px
Perfect Amethyst

 Level Requirement: 18

 

saphire_gem_diablo2_wiki_guide_98pxSapphires

chipped_saphire_gem_diablo2_wiki_guide_98px
Chipped Sapphire

Level Requirement: 1

flawed_saphire_gem_diablo2_wiki_guide_98px
Flawed Sapphire

 Level Requirement: 5

 

saphire_gem_diablo2_wiki_guide_98px
Sapphire

 Level Requirement: 12

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Flawless Sapphire

 Level Requirement: 15

 

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Perfect Sapphire

 Level Requirement: 18

 

emerald_gem_diablo2_wiki_guide_98pxEmeralds

chipped_emerald_gem_diablo2_wiki_guide_98px
Chipped Emerald

 Level Requirement: 1

flawed_emerald_gem_diablo2_wiki_guide_98px
Flawed Emerald

 Level Requirement: 5

 

emerald_gem_diablo2_wiki_guide_98px
Emerald

 Level Requirement: 12

flawless_emerald_gem_diablo2_wiki_guide_98px
Flawless Emerald

 Level Requirement: 15

 

perfect_emerald_gem_diablo2_wiki_guide_98px
Perfect Emerald

Level Requirement: 18

 

topaz_gem_diablo2_wiki_guide_98pxTopazes

chipped_topaz_gem_diablo2_wiki_guide_98px
Chipped Topaz

 Level Requirement: 1

flawed_topaz_gem_diablo2_wiki_guide_98px
Flawed Topaz

 Level Requirement: 5

 

topaz_diablo_2_wiki_guide_98px
Topaz

Level Requirement: 12

flawless_topaz_gem_diablo2_wiki_guide_98px
Flawless Topaz

 Level Requirement: 15

 

perfect_topaz_gem_diablo2_wiki_guide_98px
Perfect Topaz

 Level Requirement: 18

 

skull_gem_diablo2_wiki_guide_98pxRubies

Chipped Ruby
Chipped Ruby

 Level Requirement: 1

Flawed Ruby
Flawed Ruby

Level Requirement: 5 

 

Ruby
Ruby

Level Requirement: 12

Flawless Ruby
Flawless Ruby

Level Requirement: 15 

 

Perfect Ruby
Perfect Ruby

 Level Requirement: 18

 

skull_gem_diablo2_wiki_guide_98pxDiamonds

Chipped Diamond
Chipped Diamond

 Level Requirement: 1

Flawed Diamond
Flawed Diamond

Level Requirement: 5 

 

Diamond
Diamond

Level Requirement: 12

Flawless Diamond
Flawless Diamond

Level Requirement: 15 

 

Perfect Diamond
Perfect Diamond

 Level Requirement: 18

 

Gems Table in Diablo 2

Name
Type
Req Level
Weapons
Shields
Helms and Armor

Chipped Skull
Chipped Skull

Skull

1 Steals 2% Life, 1% Mana Attacker Takes Damage of 4 Replenish Life +2, Regenerate Mana 8%

Flawed Skull
Flawed Skull

Skull

5 Steals 2% Life, 2% Mana Attacker Takes Damage of 8 Replenish Life +3, Regenerate Mana 8%

Skull
Skull

Skull 12 Steals 3% Life, 2% Mana Attacker Takes Damage of 12 Replenish Life +3, Regenerate Mana 12%

Flawless Skull
Flawless Skull

Skull 15 Steals 3% Life, 3% Mana Attacker Takes Damage of 16 Replenish Life +4, Regenerate Mana 12%

Perfect Skull
Perfect Skull

Skull 18 Steals 4% Life, 3% Mana Attacker Takes Damage of 20 Replenish Life +5, Regenerate Mana 19%

Chipped Amethyst
Chipped Amethyst

Amethyst 1 +40 to Attack Rating +8 Defense +3 to Strength

Flawed Amethyst
Flawed Amethyst

Amethyst 5 +60 to Attack Rating +12 Defense +4 to Strength

Amethyst
Amethyst

Amethyst 12 +80 to Attack Rating +18 Defense +6 to Strength

Flawless Amethyst
Flawless Amethyst

Amethyst 15 +100 to Attack Rating +24 Defense +8 to Strength

Perfect Amethyst
Perfect Amethyst

Amethyst 18 +150 to Attack Rating +30 Defense +10 to Strength

Chipped Sapphire
Chipped Sapphire

Sapphire 1 1-3 Cold Damage - 1.0 sec Duration 12% Resist Cold +10 Max Mana

Flawed Sapphire
Flawed Sapphire

Sapphire 5 3-5 Cold Damage - 1.4 sec Duration 16% Resist Cold +17 Max Mana

Sapphire
Sapphire

Sapphire 12 4-7 Cold Damage - 2.0 sec Duration 22% Resist Cold +24 Max Mana

Flawless Sapphire
Flawless Sapphire

Sapphire 15 6-10 Cold Damage - 2.4 sec Duration 28% Resist Cold +31 Max Mana

Perfect Sapphire
Perfect Sapphire

Sapphire 18 10-14 Cold Damage - 3.0 sec Duration 40% Resist Cold +38 Max Mana

Chipped Emerald
Chipped Emerald

Emerald 1 +10 Poison Damage over 3 Seconds 12% Resist Poison +3 to Dexterity

Flawed Emerald
Flawed Emerald

Emerald 5 +20 Poison Damage over 4 Seconds 16% Resist Poison +4 to Dexterity

Emerald
Emerald

Emerald 12 +40 Poison Damage over 5 Seconds 22% Resist Poison +6 to Dexterity

Flawless Emerald
Flawless Emerald

Emerald 15 +60 Poison Damage over 6 Seconds 28% Resist Poison +8 to Dexterity

Perfect Emerald
Perfect Emerald

Emerald 18 +100 Poison Damage over 7 Seconds 40% Resist Poison +10 to Dexterity

Chipped Ruby
Chipped Ruby

Ruby 1 3-4 Fire Damage 12% Resist Fire +10 to Life

Flawed Ruby
Flawed Ruby

Ruby 5 5-8 Fire Damage 16% Resist Fire +17 to Life

Ruby
Ruby

Ruby 12 8-12 Fire Damage 22% Resist Fire +24 to Life

Flawless Ruby
Flawless Ruby

Ruby 15 10-16 Fire Damage 28% Resist Fire +31 to Life

Perfect Ruby
Perfect Ruby

Ruby 18 15-20 Fire Damage 40% Resist Fire +38 to Life

Chipped Diamond
Chipped Diamond

Diamond 1 +28% Damage vs. Undead All Resistances +6% +20 to Attack Rating

Flawed Diamond
Flawed Diamond

Diamond 5 +34% Damage vs. Undead All Resistances +8% +40 to Attack Rating

Diamond
Diamond

Diamond 12 +44% Damage vs. Undead All Resistances +11% +60 to Attack Rating

Flawless Diamond
Flawless Diamond

Diamond 15 +54% Damage vs. Undead All Resistances +14% +80 to Attack Rating

Perfect Diamond
Perfect Diamond

Diamond 18 +68% Damage vs. Undead All Resistances +19% +100 to Attack Rating

Chipped Topaz
Chipped Topaz

Topaz 1 1-8 Lightning Damage 12% Resist Lightning +9% Chance to Find Magic Items

Flawed Topaz
Flawed Topaz

Topaz 5 1-14 Lightning Damage 16% Resist Lightning +13% Chance to Find Magic Items

Topaz
Topaz

Topaz 12 1-22 Lightning Damage 22% Resist Lightning +16% Chance to Find Magic Items

Flawless Topaz
Flawless Topaz

Topaz 15 1-30 Lightning Damage 28% Resist Lightning +20% Chance to Find Magic Items

Perfect Topaz
Perfect Topaz

Topaz 18 1-40 Lightning Damage 40% Resist Lightning +24% Chance to Find Magic Items



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