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What is your definition of ‘Eye-Clean’?

The Whiteflash baseline definition of eye-clean is:


No inclusions visible to the naked eye of a person with 20/20 vision when viewing the diamond in the face-up position at a distance of approximately 10 inches under normal overhead lighting .


Distance, lighting and human vision all influence this judgment. There is no universally agreed upon definition of eye-clean in the trade so we developed this one in order to communicate meaningfully with our customers. 10 inches is the ‘distance of most distinct vision’ as defined by the field of optometry.  It is also a basis used by the AGS Laboratory in light performance grading, and so this is a logical standard and a practical baseline.


Diamonds graded by AGS and GIA with clarities of VS or above are almost always completely eye-clean by the above standard.  On our website diamond detail pages  Si clarity diamonds include an icon indicating when the diamond is eye-clean. 


*For practical guidance see our page on diamond clarity.  For more in-depth information see our page on clarity grading at the lab.

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    Telephone 1-877-612-6770
    Outside USA 1-832-252-6770
    2150 Town Square Pl
    Sugar Land,
    TX 77479 USA
    Winner of the 2015 BBB Pinnacle Award
    Best Jeweler in Houston, Texas

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