Price (Item Level): 100 gp (1st) (least); 400 gp (2nd) (lesser); 1,000 gp (4th) (greater)
Body Slot: — (weapon crystal)
Caster Level: 5th
Aura: Faint; (DC 17) evocation
Activation: Swift (command)
Weight: —
This faceted yellow crystal glows as if a small spark burns within it.
Activating a crystal of illumination causes your weapon to glow.
Least: The weapon sheds bright illumination in a 5-foot radius and shadowy illumination for 5 feet beyond that.
Lesser: The weapon sheds bright illumination in a 20-foot radius and shadowy illumination for 20 feet beyond that.
Greater: The weapon sheds bright illumination in a 60-foot radius and shadowy illumination for 60 feet beyond that.
Prerequisites: Craft Magic Arms and Armor, daylight.
Cost to Create: 50 gp, 4 XP, 1 day (least); 200 gp, 16 XP, 1 day (lesser); 500 gp, 40 XP, 1 day (greater).
Source: Magic Item Compendium, page 64.