Gems can be arranged in your gem frame to modify many statistics and weapon/item behaviors in the game. You're limited by the available space in your gem frame (which expands through various quests in the game), and the orientation of that space within the frame (ie if you have 2 empty spaces you may be able to put in a 2x1 gem but not a 1x2 gem).
Some gems are found or purchased throughout the game, while others must be fused from other gems.
Red Gems (affect ATK and attack type) 43 types
| Gem Type
|
Description
|
Cost
|
Size
|
Fusion Formula
|
| Crystal of Strength
|
ATK (weapon attack power) +4
|
|
1x1
|
N/A
|
| Feral Soul
|
ATK +8
|
|
1x1
|
|
| Steal Hook
|
Enables theft of items from monsters with a flick of the flail
|
|
1x1
|
|
| Sonic Wave
|
Causes the third sword slash to unleash a shock wave
|
|
2x1
|
|
| Multiple Swings
|
Enables up to 3 consecutive swings with the flail
|
|
2x1
|
|
| Triple Shot
|
Each bow attack fires arrows in three directions
|
|
2x1
|
|
| Heavy Swing
|
Hammer strikes knock monsters even farther back
|
|
2x1
|
|
| Double Sonic Wave
|
Deal double damage with sword. Third strike unleashes shock waves
|
|
2x1
|
|
| Sword Expertise
|
Sword ATK +8. Double damage. Third strike unleashes shock waves
|
|
2x1
|
|
| Mighty Defense
|
Raises the maximum number of parries to 10
|
|
1x2
|
|
| String Resonance
|
Extends range of bow's music
|
|
1x2
|
|
| Sword Training
|
ATK +10 when striking with a sword
|
|
1x2
|
|
| Flail Training
|
ATK +10 when striking with a flail
|
|
1x2
|
|
| Bow Training
|
ATK +10 when shooting a bow
|
|
1x2
|
|
| Hammer Training
|
ATK +10 when striking with a hammer
|
|
1x2
|
|
| Soul of the Dragon
|
ATK +12
|
|
2x1
|
|
| Might of Gemmas
|
ATK +20
|
|
2x2
|
|
Blue Gems (affect INT, MP, and spell levels) 33 types
| Gem Type
|
Description
|
Cost
|
Size
|
Fusion Formula
|
| Crystal of Lore
|
INT (spell damage) +4
|
|
1x1
|
|
| Salamander's Favor
|
Salamander's spells reach level 2
|
|
2x1
|
|
| Undine's Favor
|
Undine's spells reach level 2
|
|
2x1
|
|
| Gnome's Favor
|
Gnome's spells reach level 2
|
|
2x1
|
|
| Jinn's Favor
|
Jinn's spells reach level 2
|
|
2x1
|
|
| Pride of the Spirits
|
All elemental spells reach level 2
|
|
2x1
|
|
| Dryad's Favor
|
Dryad's spells reach level 2
|
|
1x2
|
|
| Luna's Favor
|
Luna's spells reach level 2
|
|
1x2
|
|
| Wisp's Favor
|
Wisp's spells reach level 2
|
|
1x2
|
|
| Shade's Favor
|
Shade's spells reach level 2
|
|
1x2
|
|
| Bond of Wisp
|
Wisp's spells reach level 3
|
|
2x2
|
|
Yellow Gems (affect MND, DEF, and recovery) 32 types
| Gem Type
|
Description
|
Cost
|
Size
|
Fusion Formula
|
| Crystal of Defense
|
DEF (physical defense) +4
|
|
1x1
|
|
| Crystal of Thought
|
MND (magical defense) +4
|
|
1x1
|
|
| Millennicite
|
Restores 2 MP every 3 seconds
|
|
1x1
|
|
| Stardust Miracle
|
The effects of stardust herb apply to all party members
|
|
1x1
|
|
| Lore of Healers
|
Doubles effects of HP recovery items
|
|
2x1
|
|
| Lore of Mages
|
Doubles effects of MP recovery items
|
|
1x2
|
|
| Lore of Angels
|
Restores to full HP anyone you revive with an angel's grail
|
|
1x2
|
|
Impure Gems (unstable effects) 35 types
| Gem Type
|
Description
|
Cost
|
Size
|
Fusion Formula
|
| Life's Thirst
|
Converts 3% of damage inflicted on monsters into HP. ATK -10
|
|
1x1
|
|
| Mind's Thirst
|
Converts 3% of damage inflicted on monsters into MP. INT -10
|
|
1x1
|
|
| Meager Resistance
|
Automatically use stardust herb. Increases risk of ailments
|
|
1x1
|
|
| Meager Courage
|
Automatically use pep root. Increases risk of ailments
|
|
1x1
|
|
| Chivalry
|
DEF +20, MND -20
|
|
1x1
|
|
| Ascetism
|
MND +20, DEF -20
|
|
1x1
|
|
| Planted Feet
|
Enables steady travel over sand and ice. Increases risk of ailments
|
|
2x1
|
|
| Berserking
|
ATK +15, DEF -10
|
|
2x1
|
|
| Wizardry
|
INT +15, MND -10
|
|
2x1
|
|
| Clouded Magicite
|
Raises maximum MP by 30. MND -5
|
|
2x1
|
|
| Evil Spirit's Favor
|
All elemental spells reach level 2. ATK -10
|
|
2x1
|
|
| Meager Hope
|
Automatically use angel's grail, but you will catch on fire
|
|
1x2
|
|
| Fire & Water Flaw
|
Raises risk of burning & freezing. Lowers risk of all other ailments
|
|
2x2
|
|
| Earth & Wind Flaw
|
Raises risk of paralysis & disarmament. Lowers risk of all other ailments
|
|
2x2
|
|
| Moon & Wood Flaw
|
Raises risk of confusion & sleep. Lowers risk of all other ailments
|
|
2x2
|
|
| Light & Dark Flaw
|
Raises risk of stunning & blindness. Lowers risk of all other ailments
|
|
2x2
|
|
| Poison Flaw
|
Raises risk of poison. Lowers risk of all other ailments
|
|
2x2
|
|
| Academia
|
INT and MND +12. ATK and DEF -5
|
|
2x2
|
|
| Barbarism
|
ATK and DEF +12. INT and MND -5
|
|
2x2
|
|
| Bond of Demons
|
All elemental magic reaches level 3. ATK -50
|
|
2x2
|
|
Purple Gems (affect Fury and special attacks) 15 types
| Gem Type
|
Description
|
Cost
|
Size
|
Fusion Formula
|
Orange Gems (affects items and EXP gained) 7 types
| Gem Type
|
Description
|
Cost
|
Size
|
Fusion Formula
|
Green Gems (nullify status ailments & spikes) 12 types
| Gem Type
|
Description
|
Cost
|
Size
|
Fusion Formula
|