Dark Gem

Dark Gems are upgrade materials in Dark Souls III.

Availability

 * High Wall of Lothric
 * Dropped by Pus of Man.
 * Catacombs of Carthus
 * Dropped by the second Boulder O' Bones.
 * Consumed King's Garden
 * Found on a corpse under the left set of stairs that lead to the courtyard in front of the boss room.
 * Dropped by Pus of Man.
 * Dropped by Rotten Slugs.
 * Lothric Castle
 * Dropped by Pus of Man.

Usage
Infuses weapons with Dark damage, adding Intelligence and Faith scaling.