Children of Mana/Gems

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, depending on the arrangement of the current gems in the frame).

Some gems are found or purchased throughout the game (or won as quest rewards), while others must be fused from other gems. Some gems can be created with more than one formula, and when known this should be indicated in the tables below. Costs listed may be the cost of fusion or the cost to purchase from the vendor, depending on availability.

The number of gems you can carry (besides those in your gem frame) is determined by the type of knapsack you have, and is the same as the number of any other type of item you can carry (8 to 24). Therefore, if you have the basic knapsack you start the game with, you can carry 8 of each type of gem (individual gem types, not just 8 within each color of gem).

Impure Gems (unstable effects) 35 types

Gem Type	Description	Cost	Size
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
Soul's Thirst	Converts 3% of damage inflicted into HP and MP. ATK -10, INT -10		1x1
Good and Bad Luck	Increases lucre gain by 20%. Items drop less often.		1x1
Cautious Feet	Enables safe travel over spikes. Increases risk of ailments		1x2
Meager Hope	Automatically use angel's grail, which will revive you, but you will catch on fire		1x2
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
Clouded Vivicite	Raises maximum HP by 50. DEF -10		2x1
Evil Spirit's Favor	All elemental spells reach level 2. ATK -10		2x1
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
Zeal of Demons	All elemental spells consume 30% lwess MP. ATK -50		2x2
Uneasy Meditation	Restores 3 HP every 3 seconds. DEF -5.		2x2
Budding Warlock	Doubles effect of MP recovery items. Increases risk of ailments.		2x2
Budding Alchemist	Doubles effect of HP recovery items. Increases risk of ailments.		2x2
Courage to Learn	Increases experience gain by 75%. DEF -20.		2x2
Witch's Meditation	Restores 5 HP every 3 seconds. DEF -10.		3x2
Witch's Blessing	Restores 10 HP and 10 MP every 3 seconds. ATK and INT -50.		3x3

Purple Gems (affect Fury and special attacks) 15 types

Gem Type	Description	Cost	Size
Glittering Crystal	DEX (critical hit probability) +10	1000	1x1
Cruel Sword	When you are in Fury, your focused sword attacks reach level 2		1x1
Cruel Flail	When you are in Fury, your focused flail attacks reach level 2		1x1
Cruel Bow	When you are in Fury, your focused bow attacks reach level 2		1x1
Cruel Hammer	When you are in Fury, your focused hammer attacks reach level 2		1x1
Fury Reels	Enables Fury Reels when you enter Fury		2x1
Morale Boost	Makes the Fury gauge fill faster	4000	2x1
Ruthless Sword	When you are in Fury, your focused sword attacks reach level 3	4000	2x1
Ruthless Flail	When you are in Fury, your focused Flail attacks reach level 3	4000	2x1
Ruthless Bow	When you are in Fury, your focused hammer attacks reach level 3	3000	2x1
Ruthless Hammer	When you are in Fury, your focused hammer attacks reach level 3	3000	2x1
Ruthless Gemma	When you are in Fury, all focused attacks reach level 3		2x2
Spirit of the Hero	Doubles duration of Fury	5000	2x2
Double Fury	Doubles experience earned while in Fury		3x2

Orange Gems (affects items and EXP gained) 7 types

Gem Type	Description	Cost	Size
Lore of Thieves	Makes fake treasure chests appear as monsters on radar	1000	1x1
Drain Will	Converts 3% of damage inflicted on monsters into MP	15000	1x2
Drain Life	Converts 3% of damage inflicted on monsters into HP	30000	2x1
Lore of Niccolos	Adds 10% bonus to lucre gained	4000	2x2
Heart of Progress	Increases experience gain by 50%	10000	2x2
Double Drop	Doubles the chance that monsters will drop items and lucre	5000	2x2
Drain Soul	Converts 3% of damage inflicted on monsters into HP and MP	35000	2x2

Green Gems (nullify status ailments & spikes) 12 types

Gem Type	Description	Cost	Size
Purity's Shelter	Prevents you from being poisoned	8000	1x2
Flame's Shelter	Prevents you from catching fire	4000	1x2
Water's Shelter	Prevents you from being turned into a snowman	4000	1x2
Forest's Shelter	Prevents you from being put to sleep	4000	1x2
Moon's Shelter	Prevents you from being confused	4000	1x2
Light's Shelter	Prevents you from being stunned	4000	1x2
Shadow's Shelter	Prevents you from being blinded	4000	1x2
Earth's Shelter	Prevents you from being disarmed	4000	2x1
Wind's Shelter	Prevents you from being paralyzed	4000	2x1
Virtue of Safety	Enables safe travel over spikes	6000	2x2
Virtue of Balance	Enables steady travel over sand and ice	6000	2x2
Ultimate Protection	Prevents all ailments	12000	3x2