In Dark Souls 3 you can infuse many different Weapons and Shields with Gems that change the properties, damage type or Scaling. In order to infuse a Weapon or Shield to your chosen type you must:

  1. have found and give the appropriate Coal to Blacksmith Andre,
  2. have a Gem of the chosen type, and
  3. have the required Souls.

The exceptions here are Refined, Raw or Fire which require no Coal to be given. You can use a Shriving Stone if you wish to remove the Infusion from your Weapon or Shield (this must also be done at Blacksmith Andre). Again, not all Weapons and Shields can be Infused so check the Weapons pages to verify which can and can't.

These weapons CANNOT be infused:BowsGreatbowsCrossbowsChimesTalismansStaves, Pyromancy Flames and any weapon that upgrades with Twinkling Titanite or Titanite Scale

Name & Icon

Effect

Coal Required

Buffable

Shriving Stone

Removes Infusion None Yes

Refined Gem

Reduces Base Damage
Adds Strength & Dexterity Scaling

Yes

Raw Gem

Increases Base Damage
Removes Scaling
Yes

 Fire Gem

Reduces Base Damage
Removes Scaling
Adds Fire Damage
No

 Heavy Gem

Reduces Base Damage
Adds Strength Scaling

Farron Coal

Yes

 Sharp Gem

Reduces Base Damage
Adds Dexterity Scaling
Yes

 Poison Gem

Reduces Base Damage
Reduces Strength & Dexterity Scaling
Adds Poison Aux
No

 Crystal Gem

Reduces Base Damage
Reduces Strength & Dexterity Scaling
Adds Intelligence Scaling
Adds Magic Damage

Sage's Coal

No

 Blessed Gem

Reduces Base Damage
Reduces Strength & Dexterity Scaling
Adds Faith Scaling
Adds HP recovery
No

 Deep Gem

Removes Scaling
Reduces Base Damage
Adds Dark Damage
No

 Dark Gem

Reduces Base Damage
Reduces Strength & Dexterity Scaling
Adds Faith & Intelligence Scaling
Adds Dark Damage

Profaned Coal

No

 Blood Gem

Reduces Base Damage
Reduces Strength & Dexterity Scaling
Adds Bleed Aux
No

 Hollow Gem

Reduces Base Damage
Reduces Strength & Dexterity Scaling
Adds Luck Scaling
Luck Stat When Hollow

Yes

 Lightning Gem

Reduces Base Damage
Reduces Strength & Dexterity Scaling
Adds Faith Scaling
Adds Lightning Damage

Giant's Coal

No

 Simple Gem

Reduces Base Damage
Reduces Strength & Dexterity Scaling
Adds Intelligence Scaling
Adds Magic Damage
Adds FP Recovery
No

 Chaos Gem

Reduces Base Damage
Reduces Strength & Dexterity Scaling
Adds Faith & Intelligence Scaling
Adds Fire Damage
No



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    • Anonymous

      14 Mar 2021 16:55  

      I miss how Ds2 did infusions, it was a balance of losing attack power for the tradeoff of no split damage, and gaining split damage for more attack power. Now in Ds3 elemental infusions are gutted because you can't buff them, so why risk ALWAYS having split damage when you could get more damage by buffing a physical infused weapon? Not to mention how quick and easy bundles are to use too, it's a damn shame, really.

      • Anonymous

        04 Sep 2020 22:49  

        If you have a +3 weapon and then get it infused by refined gem, can you contribute to reinforce it to level 10?

        Thanks!

        • Anonymous

          04 Sep 2020 17:23  

          Just wondering, if split damage gets crippled by damage reduction and defense values, why go for them in the 1st place?

          • Anonymous

            20 Jul 2020 20:38  

            if you upgrade a weapon to say plus 4 for example and infuse it will it go back to plus zero or will it be say dark +4

            • Anonymous

              01 Jul 2020 00:24  

              does infusing a weapon affect who you can summon, like your soul level or weapon upgrade level

              if i’m SL12 with a +0 and i infuse will that change who i can summon/invade

              • Anonymous

                18 Apr 2020 02:18  

                miyazaki keeps changing dark souls. Why is the chaos upgrade path related to the giant? He's the typical artist never satisfied with his work.

                • Anonymous

                  25 Feb 2020 05:34  

                  I'm on a sl1 challenge and I'm stuck in lothric and lorian. Should I replace my fire +10 Millwood with a simple infusion? I know lothric is weak to magic but is it worth it? I also have a lightning gem of I should do that.

                  • Anonymous

                    02 Feb 2020 23:47  

                    Should I infuse mu weapons with Dark and Chaos ? I heard they are really good in PvP, or should I use refined, heavy or sharp gem ? And why does everyone use the dagger + Chaos infusion ? I use the Lothric Knight Straightsword, Claymore, Spitleaf, Estoc, Rapier, Zweihänder, Astora Greatsword, Carthus curved sword, with what should I infuse them ? My stats are: 25 strength 25 dex 15 faith 14 intelligence

                    • Anonymous

                      15 Oct 2019 06:45  

                      About some of the earlier posts about the heavy gem infusions (which is only to ever be used if you are and plan to always be a strength build), note that this information is not completely accurate, as while sharp gems do reduce strength scaling while increasing dex, heavy gems completely removes dex scaling entirely. I'm not sure if this was due to a patch since the time of this post, but heavy gems completely eliminate all other scaling. This is as of 2019, so things could have been very different at the time of this posting. So as always, be sure to run the numbers before any infusion, making sure to take into account where you are with your current build and perhaps more importantly, where you plan to ultimately end up stat wise. While these infusions can always be switched later if you alter or respec your character, but early in the game, where gems are scarce, this is definitely something to take into consideration.

                      • Anonymous

                        17 Aug 2019 17:59  

                        The elemental infusions to shields really does not give you much additional protection at all to that element, considering you can easily find shields through natural progress that addresses all your concerns, however, I will say that infusing a small parry shield, like the small leather or target shield with a blessed gem, that constantly recovers health while equipped is very useful, especially if you have the sun princess ring equipped. It is not advisable to do this with a shield that has a 100% physical block as it reduces the shield to only 95% physical block, except for the very unique oak shield in Ashes. The simple gem can be used on a parry shield as well to regain FP, although very, very, slowly. So if you have any skills at all with parrying, which is not very important for PvE but but critical for PvP, this is the way to go. Otherwise, do not infusion shields, does more harm than good.

                        • Anonymous

                          17 Aug 2019 17:18  

                          Ya know, after NG and NG +1, now on NG+2, I still do not think I fully understand how to get the most bang for my buck in designing weapons for PvP using infusions. I'm now at 70/70/70/70 down the board. I was doing great from SL88-350, with about an 80% success rate against any invader to my world. However, not realizing what it meant to go past SL 350, being summoned to other worlds to help players is very difficult considering I'm matched against players at max SL 802, to my SL 351. So maybe it's a bit off topic, but I was wondering if anyone has any really serious knowledge on infusions at high level PvP. Obviously if you are 70 in str, dex, int, faith, you're going with either chaos, dark, or refined, and sometimes sharp. The Lothric knight sword scales incredibly well with chaos and dark infusions, at C-C-A-A. They are light and fast, the DPS is insane if you back someone into a corner. However, the refined millwood battle axe (best weapon in the game for any build in my opinion) buffed with lightning damage, (as even high SLs are weak too as raising your stamina over 40 is just silly unless you are at 99 with everything else except luck) seems to be very good. I was wondering, do any highly experienced PvP players had any thoughts on this matter? For someone that's rocking straight 70s (only 7 luck) down the board, what infusion do you use? Basically, if you're fighting someone whose stats are unknown to you, except that they are powerful, do you use elemental infusions, or do you believe that just straight physical damage (with buffs) is the way to go? And I am asking in general as well, it does not have to be a discussion based only on very high SLs. What do you do?

                          • Anonymous

                            16 Jul 2019 02:35  

                            Infusion on a Shield seems like a minor thing, what? use one of my resources to make something absorb one thing better, but make the rest weaker?

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