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Wednesday, 19 September 2007

flawless. The recommended term for a diamond without external or inter­nal flaws or blemishes of any de­scription when viewed by a trained eye under efficient illumination and under a fully corrected magnifier of not less than 10 power; binocular examination under dark-field illumi­nation is preferred. The American Gem Society advocates the use of the term flawless by its members, while at the same time denying them the use of the term perfect. The Fed­eral Trade Commission "permits the use of the term flawless, but only if a stone conforms to its definition of the word perfect, without reference to make or color. See aberration, clarity

(OR IMPERFECTION) GRADE, PERFECT.

 
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