According to their ratings, GIA diamond gradings of clarity in Flawless (FL), within Internal Flawless (IF), very very slight (VVS), and slight (VS) are eye clean visually
Ting Diamond considered that when a diamond measure, at close range 10-15cm (with normal 20/20 vision) look down and see the diamond, with the naked eye clean.Clean eye this definition, different retailers also have various, but generally have these two factors:
According to their ratings, GIA diamond gradings of clarity in Flawless (FL), within Internal Flawless (IF), very very slight (VVS), and slight (VS) are eye clean visually