beauty spot

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A mole or birthmark.
• noun A small black mark penciled or glued on a woman's face or shoulders for ornamentation or to conceal a blemish.
• noun A location noted for its beauty.

from The Century Dictionary.

• noun A patch or spot placed on the face to heighten beauty, as formerly practised by women; hence, something that heightens beauty by contrast; a foil.
• noun An especially beautiful feature or thing.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A birthmark, especially on a woman.
• noun A place noted for its natural beauty.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a spot that is worn on a lady's face for adornment