Gems

As you progress through the game, you will eventually accumulate gems. Gems provide stat boost to your equipments. To make a next level gem you need 3 current gems to synthesis. Ex. 3 Scratched gems are need to make 1 Normal gem. There are several types of gems in the game:

Ruby: increases physical attack

Topaz: increases magic attack

Amber: increase physical defense

Sapphire: increases magic defense

Emerald: increase healing

Jade: increase HP 

Starting from Shining Gems, Purified Crystals are needed to upgrade to the next level. The amount needed for Chipped to make 1 Immaculate gem is 19683.

Equipment: Only select gems maybe socket to each equipment

Weapon- Ruby/Topaz/Emerald

Glove- Ruby/Topaz/Emerald

Helm- Sapphire/Jade

Boots- Sapphire/Amber/Jade

Armor- Amber/Jade

Gem Locations- all drops are random

Elite mob (1-60)- drops 0 to 1 Chipped gems

Elite mob (60+) - drops Flawed & Chipped gems (sometimes 0, 1 or 2)

Dungeons:

Indigo, Revenant's Vault, Blood Coliseum - mainly drops Chipped and Flawed from mobs and Bosses

Sacrifical Relics, Killer's Den, Psychodelica, Exelorn Hollows- drops can differ based on level setting of normal, hard, & nightmare. Most mobs will drop Flawed, while Bosses may range Flawed, Scratched & Normal.

Events-Coupons are exchangeable for any type of gem of a given level. However they are bound and are untradeable.

Cashshop-Sells several types of gems for a certain amount of crystals

Trade: Gems are tradable except for Coupons & bound gems.