How to get it
- Collect four Shadow Shards from Rocket battles or Shadow Raids; they automatically form a Gem.
- The normal inventory limit is ten Gems, after which ordinary shard collection stops.
How to use it
- Use Gems when the Shadow Raid boss is enraged and the Gem control is available.
- Coordinate use with the group: a Trainer can normally use up to five in one battle.
Worth knowing
The standard subduing requirement is eight Gems across the group. One Trainer’s five-Gem allowance is not enough to meet that threshold alone.
Purifying a captured Shadow Pokémon instead uses Stardust and Candy from its details screen.
Subduing a boss is a group resource problem
You normally need eight Gems to subdue an eligible enraged Shadow Raid boss, while one Trainer can use no more than five in that battle. One player carrying plenty of Gems therefore cannot solve the requirement alone.
Eight Gems represent 32 Shadow Shards. For a two-person group, plan a split such as four Gems each rather than assuming that a few scattered uses are enough. This is resource planning, not a guarantee the team can defeat the boss. Event rules can change raid behavior, so check the current battle conditions.
This system applies to enraged Shadow Raid bosses. It does not cure a Max Battle boss’s desperate state, and it does not purify a Shadow Pokémon in your collection.
Sources & further reading
- Pokémon GO: A Quantitative Approach by nick blackVersion 1.0.6 (October 4, 2026), §2.3, p. 7; §10.6, p. 138; §10.6, pp. 138–139
- Pokémon GO Help Center — Purified Gems
Event rewards, shop offers, and limits can change. Check the current in-game description for event-specific rules. Worked examples are illustrative calculations.
