Knowledge is a suffix that can appear on Jewels. It provides a bonus to Energy.
It can start spawning on jewels at Item Level 9, but will not be able to spawn with full effect until level 41.
Stats
Knowledge
+1-9 To Energy
Can appear on: Magic Items, Rare Items
Is available on: Jewels
Items
+ Strength — Strength • Might • Ox • Giant • Titan • Atlas
+ Dexterity — Dexterity • Skill • Accuracy • Precision • Perfection • Nirvana
+ Energy — Energy • Mind • Brilliance • Sorcery • Wizardry • Enlightenment
Jewels
+ Strength — Virility
+ Dexterity — Daring
+ Energy — Knowledge
Charms
+ Strength — Strength
+ Dexterity — Dexterity