This necklace, on command, emits a ray of brilliant light. The ray may be aimed at one creature within 30 feet; the victim must make a DC 14 Dex save or be partially blinded, suffering a -4 penalty on all attack rolls. The effect lasts for six rounds. The glittering necklace has no effect on undead, however, or upon any creature without eyes (such as a gelatinous cube). If used against a creature with a gaze attack, such as a basilisk, the victim cannot use the gaze for one round even if the saving throw is successful. If used underwater, the necklace has a 10-foot range. It may be used once per turn.
GP Value: 250
Source: The Book of Marvelous Magic