The gem effects in Diablo 4 can be a lot to keep track of, and we decided to make that easier for you.

We’ve compiled a list of the different gem types, their effects, and the sockets you can have on your gear to put them in. This means that you have only one place to check and get all the information you need!

The Diablo 4 gem system should be pretty familiar

Diablo 4 gem crafting station tip
Screenshot by Steven Cropley/ONE Esports

Gem types, effects, and tiers

Kitting out your armor and weapons with the proper gem effects is crucial to building your character. Using the right gems could be the difference between success or death in the world of Sanctuary.

Which gem you should use in the game will depend largely on the class you’re playing, along with the build you’ve chosen to run. There will be guides for all kinds of different fun builds popping up everywhere, including here, so make sure to check back once the game releases.

Below you will find the seven different gemstone types, along with the basic buff they add. For all seven types, there are five tiers.

We’ll use Amethyst as an example:

  • Crude Amethyst
  • Chipped Amethyst
  • Amethyst
  • Flawless Amethyst
  • Royal Amethyst

Each level up the chain will improve the bonus you get, which in this case would be either damage over time reduction (if in armor), resistance to shadow (if in jewelry), or increased damage over time (if in weapons).

AmethystAdds Damage Over Time ReductionAdds Resistance to ShadowAdds Damage Over Time
DiamondAdds Barrier PotencyAdds Resistance to All ElementsAdds Ultimate damage
EmeraldAdds ThornsAdds Resistance to PoisonAdds Damage to Elites
RubyAdds to Maximum LifeAdds Resistance to FireAdds Resource Generation
SapphiresAdds Damage Reduction While FortifiedAdds Resistance to ColdAdds Critical Strike Damage to Crowd-Controlled Enemies
SkullsAdds Healing ReceivedAdds Armor StatAdds Life On Kill
TopazAdds Damage Reduction While Control ImpairedAdds Resistance to LightningAdds Lucky Hit Chance

Equipment sockets

You can’t socket up every item the same with infinite gems, however. Each item can either drop with a socket or have one added in some cases.

The number of sockets varies depending on the equipment slot, ranging from either one or two total sockets possible.

The maximum number you can run at any given time would be ten, regardless of your weapon choice.

1-Handed Weapon1
2-Handed Weapon2

READ MORE: Diablo 4 reveals official launch system requirements — can you play?