Diamond - Gems

Diamond is a type of gem in Diablo 4 which can be used to enhance Armor, Weapons, and Jewelry. There are six different kinds of Gems available to choose from.

Diamond Quality

There are 5 levels of Diamond quality:

Chipped
Normal
Flawless
Royal
Grand

Each quality level provides improved ultimate damage on weapons and Barrier generation on armor, while resistances to all elements are improved on Jewelry.

Gem	Req Lvl	Effect	Material Cost
Chipped Diamond	10	Weapon: +10% Ultimate damage Armor: +4 All Stats Jewelry: 2% Resistance to All Elements	10 Diamond Fragments 1,000 Gold
Diamond	15	Weapon: +20% Ultimate Skill Damage Armor: +7 All Stats Jewelry: 4% Resistance to All Elements	100 Diamond Fragments 10,000 Gold
Flawless Diamond	20	Weapon: +30% Ultimate Skill Damage Armor: +10 All Stats Jewelry: 6% Resistance to All Elements	1,000 Diamond Fragments 100,000 Gold
Royal Diamond	25	Weapon: +40% Ultimate Damage Armor: +13 All Stats Jewelry: 8% Resistance to All Elements	10,000 Diamond Fragments 1,000,000 Gold
Grand Diamond	30	Weapon: +60% Ultimate Damage Armor: +20 All Stats Jewelry: 12% Resistance to All Elements	100,000 Diamond Fragments 30 Forgotten Soul 10,000,000 Gold

Changes to Diamond - Gems

Patch 2.0, October 8, 2024

Weapon Ultimate Damage increased.
Armor effect changed from +% Barrier Generation to + All Stats.
Character level requirement reduced.
Added Grand quality.

Patch 1.4.0, May 14, 2024

Crude Diamond removed.
Ultimate Damage increased apart from Chipped.
Barrier Generation increased.
Resist to all elements increased for Flawless and Royal and reduced for Chipped.
Cost reduced for Chipped and regular and increased for Flawless and Royal.
Level required reduced for all apart from Royal.

Patch 1.2.0, October 17, 2023

All Resistance values on Diamond Gems have been adjusted:
- Crude: +1%
- Chipped: +2%
- Normal: +3%
- Flawless: +4%
- Royal: +5%