Gems are a type of equipment in Cyberdimension Neptunia: 4 Goddesses Online. They boost stats, and 3 different gems can be equipped at a time per character and the effects are cumulative with some exceptions. Equipping two exp or two bell increasing gems do not actually increase exp/bells by the combined amount only the highest amount. However prayer and Eyes of Nagia do stack with those gems.
List of Gems
| Gem | Where To Find | Effect |
|---|---|---|
| Power Gem | Gem Shop | Increases STR/INT by 10% |
| Element Gem | Gem Shop | Increases elemental damage by 10% |
| Protect Gem |
|
Increases DEF by 10% |
| Stamina Gem | Gem Shop | Increases HP by 10% |
| Magic Gem |
|
Increases SP by 10% |
| Superpowered Gem |
|
Increases STR/INT by 25% |
| Spirit Gem |
|
Increases elemental damage by 25% |
| Iron Wall Gem |
|
Increases DEF by 25% |
| Life Gem |
|
Increases HP by 25% |
| Wisdom Gem |
|
Increases SP by 25% |
| Fire Gem | Gem Shop | Grants Fire element to weapon. (No effect overlap with element gems) |
| Ice Gem | Gem Shop | Grants Ice element to weapon. (No effect overlap with element gems) |
| Lightning Gem | Gem Shop | Grants Lightning element to weapon. (No effect overlap with element gems) |
| Wind Gem | Gem Shop | Grants Wind element to weapon. (No effect overlap with element gems) |
| Purgatory Gem | Guild: (Rank 5) Magma Diver | Grants Fire element to weapon, and increases element damage by 15%. (No effect overlap with element gems) |
| Frost Blade Gem | Guild: (Rank 5) Symbol of Power | Grants Ice element to weapon, and increases element damage by 15%. (No effect overlap with element gems) |
| Flash Gem | Guild: (Rank 6) Knight of Despair | Grants Lightning element to weapon, and increases element damage by 15%. (No effect overlap with element gems) |
| Gale Gem | Guild: (Rank 7) Where Are You | Grants Wind element to weapon, and increases element damage by 15%. (No effect overlap with element gems) |
| Fire Reduction Gem | Gem Shop | Reduces damage from Fire by 25% |
| Ice Reduction Gem | Gem Shop | Reduces damage from Ice by 25% |
| Lightning Reduction Gem | Gem Shop | Reduces damage from Lightning by 25% |
| Wind Reduction Gem | Gem Shop | Reduces damage from Wind by 25% |
| Fire Protection Gem | Guild: (Rank 5) Magma Diver | Reduces damage from Fire by 50% |
| Ice Protection Gem | Guild: (Rank 5) Symbol of Power | Reduces damage from Ice by 50% |
| Lightning Protection Gem |
|
Reduces damage from Lightning by 50% |
| Wind Protection Gem | Guild: (Rank 6) Beast's Diary | Reduces damage from Wind by 50% |
| Assault Gem | Guild: (Rank 4) Giant's Brandish | Increases STR/INT by 50%, but lowers DEF by 50% |
| Last Stand Gem | Guild: (Rank 5) Deep Purple | Increases STR/INT by 80%, but lowers DEF by 80% |
| Effective Gem | Gem Shop | Increases damage ratio to elemental weakness by 25% |
| Godly Effect Gem | Guild: (Rank 7) Spreading Irregularity | Increases damage ratio to elemental weakness by 50% |
| Learning Gem | Pierre's Emporium | Increases acquired EXP by 10% |
| Experience Gem | Guild: (Rank 6) Knight of Despair | Increases acquired EXP by 20% |
| Silver Gem | Pierre's Emporium | Increases Bells acquired from enemies in dungeons by 1.2x |
| Gold Gem | Guild: (Rank 7) Den of Demons [Rank Up] | Increases Bells acquired from enemies in dungeons by 1.5x |
| Willpower Gem |
|
Double rate at which SP gauge increases |
| Faith Gem | Guild: (Rank 6) Warrior of Adversity | Double rate at which Awakening gauge increases |
| Belief Gem | Guild: (Rank 5) Vessel of Goddess | Increases Awakening gauge's effect time by double |
| Consecutive Gem | Gem Shop | Increases STR/INT by 10% for each 10 combo. (Max 100% increase) |
| Raging Waves Gem | Guild: (Rank 7) Dimensional Beast | Increases STR/INT by 10% for each 10 combo. (Max 200% increase) |
| Adversity Gem | Gem Shop | When HP is 25% or less, STR/INT ↑ by 50% |
| Potential Gem |
|
When HP is 15% or less, STR/INT ↑ by 150% |
| Guardian Gem |
|
DEF ↑ by 20% and STR/INT ↓ by 10% |
| Endurance Gem | Guild: (Rank 4) Search for Him | DEF ↑ by 50% and STR/INT ↓ by 25% |
| Healing Gem |
|
HP recovers by 0.5% every second |
| Vitality Gem | Guild: (Rank 7) Sword of Justice | HP recovers by 1% every second |