There are a number of gems in the game with different abilities depending on what gear you put them in. First you need to have a socket to place the gem in. Here's a list of each and what you gain. The percentage you gain from the gems is random but usually between 2-5%.

Gem Stones Description Weapon Armor Accesorry

Diamond
Absorbs HP
HP Absorbtion 3-6%
Rebound Damage
Effect of rebound damage 3-9%
Absorbs MP
MP Absorbtion 3-6%

Flawed Diamond
Absorbs HP
HP Absorbtion 1-4%
Rebound Damage
Effect of rebound damage 2-6%
Absorbs MP
MP Absorbtion 3-6%

Agate
Divine Guidance
Double Attack 1-5%
Decrease Damage Recieved
Damage Reduce 2-6%
Improve HP
HP Upper limit 4-12%

Flawed Agate
Divine Guidance
Double Attack 1-3%
Decrease Damage Recieved
Damage Reduce 1-4%
Improve HP
HP upper limit 2-9%

Amber
Increase Strike Rate
Hit Rate 2-6%
Increase Dodge Rate
Dodge Chance 1-6%
Improve MP
MP upper limit 2-10%

Flawed Amber
Increase Strike Rate
Hit Rate 1-4%
Increase Dodge Rate
Dodge Chance 1-3%
Improve MP
MP Upper Limit 2-6%

Emarld
Attack Speed
Attack Speed 2-6%
Movement Speed
Movement Speed 2-6%
MP Recovery Speed
HP/MP Replenish Speed 50-70%

Flawed Emarld
Attack Speed
Attack Speed 1-4%
Movement Speed
Movement Speed 1-4%
MP Recovery Speed
HP/MP Replenish Speed 30-50%

Crystal
Improves Exorcise Attack
Dispell Evil Attack Chance 2-6%
Improves Strike Resistance
Resist Charge 2-6%
Improves Negitive Effect Resistance
Negitive Effect Resistance 3-9%

Flawed Crystal
Improves Exorcise Attack
Dispell Evil Attack Chance 1-3%
Improves Strike Resistance
Resist Charge 2-4%
Improves Negitive Effect Resistance
Negitive Effect Resistance 3-5%

Blazing Stone
Increase Strike Rate
Strike Rate +35
Increase Dodge Rate
Dodge +20
Improve MP
Max MP +17

Lotus Stone
Improves Attack Power
Attack Power +3
Improves Defense Power
Defense +2
Improves HP
Max HP +30

Sweetheart Stone
Improves Attack Power
Attack Power +5
Improves Defense Power
Defense +3
Improves HP
Max HP +45

Creation Coral
Increase Strike Rate
Strike Rate +70
Increase Dodge Rate
Dodge +40
Improve MP
Max HP +40


Other Stones Description Use

Massive Jade

Take to the Alchemist to punch a hole in your gear and make a socket for gems.

Massive Jade (Small)

Take to the Alchemist to punch a hole in your gear and make a socket for gems, less chance of success.

Empyrean Jade

Right click it on your damaged gear to increase it's max endurance +20%.

Tiger Eye Stone

Right click it on your damaged gear to increase it's max endurance +5%.

Scategoat Stone

Keep it in your inventory, if you get PK'ed you drop the stone instead of your items.

Sublimation Stone

Changes white material to blue. Take it to the doctor and hit refine, then click on Special Synthesis and put your material and stone in. Has to be white.


Bayer Stones Description Weapon Armor Accesorry

Kylin Stone
AP to Water +(5-50)
AP to Wood -(5-50)
Def to Earth +(10-30)
Def to Metal -(10-30)
Resistance to Freeze State +(2-15)%
Def to Wood -(5-50)

Blue Dragon Stone
AP to Earth +(5-50)
AP to Metal -(5-50)
Def to Wood +(5-50)
Def to Fire -(5-50)
Resistance to the State as Swamped +(2-15)%
Def to Metal -(5-50)

Black Tortoise Stone
AP to Fire +(5-50)
AP to Earth -(5-50)
Def to Water +(5-50)
Def to Wood -(5-50)
Resistance in the Blind State +(2-15)%
Def to Earth -(5-50)

White Tiger Stone
AP to Wood +(5-50)
AP to Fire -(5-50)
Def to Metal +(5-50)
Def to Water -(5-50)
Resistance in the State of Swamped +(2-15)%
Def to Fire -(5-50)

Red Finch Stone
AP to Metal +(5-50)
AP to Water -(5-50)
Def to Fire +(5-50)
Def to Earth -(5-50)
Resistance in the Metal State +(2-15)%
Def to Water -(5-50)