Skull

Skull is a type of gem in Diablo 4 which can be used to enhance Armor, Weapons, or Jewelry.

Skull Tiers

There are 5 tiers of Emerald:

Each tier provides improved life on kill on weapons and plus to healing received on armor, while plus to armor on Jewelry.

Gem	Req Lvl	Effect	Cost
Crude Skull	15	Weapon: +6 Life On Kill Armor: +4% Healing Received Jewelry: +100 Armor	-
Chipped Skull	20	Weapon: +13 Life On Kill Armor: +5% Healing Received Jewelry: +170 Armor	3 Crude Skull 4,500 Gold
Normal Skull	49	Weapon: +8.06 Life On Kill Armor: +4.0% Healing Received Jewelry: +170 Armor	3 Chipped Skull 12,500 Gold
Flawless Skull	50	Weapon: +12 Life On Kill Armor: +4.5% Healing Received Jewelry: +220 Armor	3 Skull 18,000 Gold
Royal Skull	60	Weapon: +24 Life On Kill Armor: +5.0% Healing Received Jewelry: +250 Armor	3 Flawless Skull 50,000 Gold