brilliance

(noun) a light within the field of vision that is brighter than the brightness to which the eyes are adapted. Synonyms: glare, blaze. Example: "A glare of sunlight."

(noun) the quality of being magnificent or splendid or grand. Synonyms: magnificence, splendor, splendour, grandeur, grandness. Examples: "For magnificence and personal service there is the queen's hotel." "His `hamlet' lacks the brilliance that one expects." "It is the university that gives the scene its stately splendor." "An imaginative mix of old-fashioned grandeur and colorful art." "Advertisers capitalize on the grandness and elegance it brings to their products."

(noun) unusual mental ability. Synonyms: genius.