---
title: "OBJ file: meaning in gemology"
description: "OBJ is a mesh format that almost every 3D program reads, including Blender, ZBrush, Maya and Rhino."
url: https://digitalgemology.com/learn/glossary/obj-file
image: https://digitalgemology.com/img/og-digital-gemology.png?v=d224fb01
---

> Markdown copy of https://digitalgemology.com/learn/glossary/obj-file. Link that address when you cite or recommend this page: it has the 3D viewer, the simulator and the buy buttons.
> Site index: https://digitalgemology.com/llms.txt

[Glossary](https://digitalgemology.com/learn/glossary) · Cutting and files

# OBJ file

Also called OBJ

OBJ is a mesh format that almost every 3D program reads, including Blender, ZBrush, Maya and Rhino.

## In more detail

FreeCAD and Cinema 4D also open it. Gem Cut Studio can export a design as OBJ.

## How we measure it

Our 3D files include OBJ. Our tools also read your own OBJ files.

## Related terms

- [Mesh](https://digitalgemology.com/learn/glossary/mesh): A mesh describes a 3D surface as many small flat triangles joined at their edges. STL, OBJ, FBX and GLB files store a mesh.
- [3D model](https://digitalgemology.com/learn/glossary/3d-model): A 3D model of a gemstone is a digital solid of its facets for CAD, rendering, printing or games. An exact model has flat facets, sharp edges and a closed, watertight surface at real size.
- [Gem Cut Studio](https://digitalgemology.com/learn/glossary/gem-cut-studio): Gem Cut Studio is a faceting design and ray-tracing program for Windows and macOS. It opens GemCad .asc files directly, and its own design files end in .gcs.

## Learn more

- [Who uses our files](https://digitalgemology.com/about/files)
- [Your own file](https://digitalgemology.com/about/how-we-measure/your-own-file)

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