Internally Flawless (IF) is the clarity grade for a diamond with no inclusions at 10x. Only blemishes on the surface show.
In more detail
It sits one step below Flawless on GIA's 11-grade scale. The difference is only on the surface, such as small polish marks.
On a grading report
Written "Internally Flawless" or "IF".
Related terms
- Flawless (FL): Flawless (FL) is the top clarity grade: a skilled grader finds no inclusions and no blemishes at 10x magnification.
- Very, Very Slightly Included (VVS1, VVS2): VVS1 and VVS2 are the clarity grades for very small inclusions. Even a skilled grader has difficulty finding them at 10x.
- Blemish: A blemish is a clarity characteristic confined to the surface of a diamond.
- Clarity grade: The clarity grade says how free a diamond is of inclusions (inside) and blemishes (on the surface) at 10x magnification. GIA's scale has 11 grades in six categories, from Flawless (FL) to Included (I3).