Color stones are for enhancement cards made by alchemist.

Navy - Str enchant on helms
- Pysical Crit enchant on Gloves

Orange: Agi Enchat on helm
Eva on gloves

Yellow: Attack speed on boots

Green: Movespeed on boots

Colorless: Damage abs on chest

Purple. Intel+ on helm
Mag crit on gloves

Red: Stam on head
Hp + on leggings

blue: Mp plus on leggings
Wisdom+ on head

they are also useful for weapon chant

Navy: Health. HP+ on weapon.

Orange: Mana + on Weapon

Yellow: PVP damage on weapon

Purple: Magic attack damage + on wepaon

Red: Healing + on weapon

Blue: Physical attack damage + on weapon