Diamond clarity is a measure of the purity and rarity of the stone, graded by the visibility of these characteristics under 10-power magnification. A stone is graded as flawless if, under 10-power magnification, no inclusions (internal flaws) and no blemishes (external imperfections) are visible. At Tiffany, we only accept .04% of the world’s gem-grade diamonds.
Tiffany Standard of Clarity
Tiffany’s strict diamond grading standards are executed with expertise, integrity and accuracy. When Tiffany believes that a diamond’s clarity is on the borderline between two grades, Tiffany will always assign the stone a lower grade—never falsely inflating a diamond clarity grade.
Does Diamond Clarity Really Matter?
A diamond with a poor clarity grade has multiple inclusions, which directly affects sparkle. Because inclusions hinder the refraction and return of light, the lower the clarity grade, the cloudier the diamond will appear. “If anything takes away from the beauty of the stone, we won’t accept it.” —Hannah Jee, diamond grader