---
title: "Cloud: meaning in gemology"
description: "A cloud is many tightly grouped pinpoints that are too small to see one by one but together look hazy."
url: https://digitalgemology.com/learn/glossary/cloud
image: https://digitalgemology.com/img/og-digital-gemology.png?v=d224fb01
---

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[Glossary](https://digitalgemology.com/learn/glossary) · Clarity characteristics

# Cloud

Also called clouds

A cloud is many tightly grouped pinpoints that are too small to see one by one but together look hazy.

## In more detail

A cloud is an inclusion. A large cloud can lower the transparency of a stone.

## On a grading report

Drawn in red on the clarity plot of a full GIA report and named in the key to symbols. A Dossier has no plot but can name it in its list of up to four.

## Related terms

- [Pinpoint](https://digitalgemology.com/learn/glossary/pinpoint): A pinpoint is a very small crystal inside a diamond that looks like a tiny dot at 10x.
- [Twinning wisp](https://digitalgemology.com/learn/glossary/twinning-wisp): A twinning wisp is a series of pinpoints, clouds or crystals that forms in a diamond's growth plane. It comes with crystal distortion and twinning planes.
- [Included (I1, I2, I3)](https://digitalgemology.com/learn/glossary/included): I1, I2 and I3 are the lowest clarity grades. Their inclusions are obvious at 10x and can affect transparency and brilliance.
- [Inclusion](https://digitalgemology.com/learn/glossary/inclusion): An inclusion is a clarity characteristic inside a diamond, or one that reaches the surface from inside.

## 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)