---
title: "Flawless (FL): meaning in gemology"
description: "Flawless (FL) is the top clarity grade: a skilled grader finds no inclusions and no blemishes at 10x magnification."
url: https://digitalgemology.com/learn/glossary/flawless
image: https://digitalgemology.com/img/og-digital-gemology.png?v=d224fb01
---

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[Glossary](https://digitalgemology.com/learn/glossary) · Four Cs

# Flawless (FL)

Also called FL, Flawless

Flawless (FL) is the top clarity grade: a skilled grader finds no inclusions and no blemishes at 10x magnification.

## In more detail

Flawless is strict. A few very small polish marks can still allow an Excellent polish grade. But those marks can stop the stone from being Flawless.

## On a grading report

Written "Flawless" or "FL" in the clarity grade line.

## Related terms

- [Internally Flawless (IF)](https://digitalgemology.com/learn/glossary/internally-flawless): Internally Flawless (IF) is the clarity grade for a diamond with no inclusions at 10x. Only blemishes on the surface show.
- [Clarity grade](https://digitalgemology.com/learn/glossary/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).
- [Blemish](https://digitalgemology.com/learn/glossary/blemish): A blemish is a clarity characteristic confined to the surface of a diamond.
- [10x magnification](https://digitalgemology.com/learn/glossary/10x-magnification): 10x magnification is the standard view for diamond clarity grading: ten times life size, with a loupe or a microscope.

## Learn more

- [The diamond clarity scale explained, from FL to I3](https://digitalgemology.com/learn/four-cs/diamond-clarity-scale)

[All 328 terms](https://digitalgemology.com/learn/glossary)