---
title: "Twinning wisp: meaning in gemology"
description: "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."
url: https://digitalgemology.com/learn/glossary/twinning-wisp
image: https://digitalgemology.com/img/og-digital-gemology.png?v=d224fb01
---

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

# Twinning wisp

Also called twinning wisps

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.

## In more detail

It forms along a twinning plane, where the crystal structure changes direction. GIA lists it among the inclusions.

## 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

- [Cloud](https://digitalgemology.com/learn/glossary/cloud): A cloud is many tightly grouped pinpoints that are too small to see one by one but together look hazy.
- [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.
- [Internal graining](https://digitalgemology.com/learn/glossary/internal-graining): Internal graining is lines, angles or curves inside a diamond caused by irregular crystal growth. At 10x they can look whitish, colored or reflective, or lower the transparency.
- [Inclusion](https://digitalgemology.com/learn/glossary/inclusion): An inclusion is a clarity characteristic inside a diamond, or one that reaches the surface from inside.

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