---
title: "DG-Vitruvio Cut: 3D Model & Faceting Diagram"
description: "DG-Vitruvio Cut 3D model and GemCad faceting diagram: 265 facets, 8.15 x 8.15 x 5.05 mm. Six formats, measured in 26 gemstones."
url: https://digitalgemology.com/cuts/dg-vitruvio
image: https://digitalgemology.com/img/cuts/bl-vitruvio-og.jpg?v=576891ff
---

> Markdown copy of https://digitalgemology.com/cuts/dg-vitruvio. 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

[Cuts](https://digitalgemology.com/cuts/) · [Brilliants](https://digitalgemology.com/cuts/#brilliants)

# DG-Vitruvio Cut

**Buy (instant download, personal-use license):** [3D files · €14.99](https://digitalgemology.lemonsqueezy.com/checkout/buy/8b7e2e3a-e008-4a2f-9bbe-a04552795fc0) · [Cutting files · €12.99](https://digitalgemology.lemonsqueezy.com/checkout/buy/75e6d066-b6ce-4a13-8585-55ab3b6188fe) · [DG-Vitruvio Cut 3D files, €14.99 · Personal use](https://digitalgemology.lemonsqueezy.com/checkout/buy/8b7e2e3a-e008-4a2f-9bbe-a04552795fc0) · [DG-Vitruvio Cut cutting files, €12.99 · Personal use](https://digitalgemology.lemonsqueezy.com/checkout/buy/75e6d066-b6ce-4a13-8585-55ab3b6188fe) · [Get the cube free](https://digitalgemology.lemonsqueezy.com/checkout/buy/2d1ab55f-2bd6-4897-a4cd-f3320f54e99e)

3D model and faceting diagram · 265 facets · 8.15 x 8.15 mm

DG-Vitruvio is the 1919 round brilliant plan at its finest subdivision. It has the 57 facets of the T-series and a girdle band of 96 facets. The crown and pavilion keep the classic proportions. All the extra work is at the girdle.

[3D files · €14.99](https://digitalgemology.lemonsqueezy.com/checkout/buy/8b7e2e3a-e008-4a2f-9bbe-a04552795fc0) [Cutting files · €12.99](https://digitalgemology.lemonsqueezy.com/checkout/buy/75e6d066-b6ce-4a13-8585-55ab3b6188fe)

Instant download · [Personal-use license](https://digitalgemology.com/licence) · [What is in the files](https://digitalgemology.com/cuts/dg-vitruvio#buy) · [Grade it in 3D](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=dg-vitruvio)

## About the DG-Vitruvio Cut

DG-Vitruvio is the 1919 round brilliant plan at its finest subdivision. It has the 57 facets of the T-series and a girdle band of 96 facets. The crown and pavilion keep the classic proportions. All the extra work is at the girdle.

It is our own development of the T-series. Use it for renders and settings where the outline should look as smooth as the stone is bright.

## DG-Vitruvio Cut specifications

Measured from the delivered model, not quoted from a standard.

**Category** Brilliants

**Facets** 57 + 96 girdles = 153 facets in the cutting design; the 3D model has 265 planar faces

**Outline** Length to width 1.000

**Total depth** 61.9% of width

**Crown angle (main)** 34.5°

**Pavilion angle (main)** 40.8°

**Reference size** 8.15 x 8.15 x 5.05 mm at 2.01 ct in diamond

**Volume** 114.12 mm³

**Cutting file accuracy** Every crown and pavilion facet within 0.002° of the 3D model (average under 0.001°); the girdle band differs by up to 1.6°, because the 3D model's girdle is more finely divided than the cutting file's

**Index gear** 96

**Symmetry** 8-fold mirror-image symmetry

**Tiers** 3 crown, 2 pavilion

**Files** STEP, 3DM, STL, OBJ, FBX, GLB, GemCad .asc, tier table, diagram

## Face-up and profile

*Face-up facet diagram of the DG-Vitruvio Cut*

Face-up: the crown facets, drawn from the model's own edges.

*Side profile of the DG-Vitruvio Cut*

Profile: 61.9% total depth.

![Light Return map of the DG-Vitruvio Cut in diamond: a computed render showing direct, indirect and contrast light across the face-up stone.](https://digitalgemology.com/img/cuts/bl-vitruvio-lightmap.webp?v=a4a0b8ce)

Light Return map of the DG-Vitruvio Cut in diamond. A computed render of the model's geometry, not a photograph.

## Cut Performance Index

- Diamond **91.7** overall, 3rd of 37
- Moissanite **92.9** overall, 2nd of 37
- Cubic Zirconia **94.6** overall, 3rd of 37
- Ruby **80.7** overall, 3rd of 37
- Sapphire **80.7** overall, 3rd of 37
- Emerald **74.4** overall, 3rd of 37
- Amethyst **71.4** overall, 3rd of 37

### Also scored in 19 more gemstones

- Topaz **76.4** overall, 3rd of 37
- Spinel **82.2** overall, 3rd of 37
- Demantoid **92.0** overall, 1st of 37
- Zircon **89.8** overall, joint 2nd of 37
- Tourmaline **79.5** overall, 3rd of 37
- Peridot **81.7** overall, 3rd of 37
- Tanzanite **81.3** overall, 3rd of 37
- YAG **85.1** overall, joint 2nd of 37
- Pyrope **83.0** overall, 3rd of 37
- Almandine **84.5** overall, 3rd of 37
- Spessartine **84.6** overall, 3rd of 37
- Grossular **84.6** overall, 3rd of 37
- Chrysoberyl **79.0** overall, 3rd of 37
- Kunzite **80.3** overall, 3rd of 37
- Iolite **75.7** overall, 3rd of 37
- Morganite **74.8** overall, 3rd of 37
- GGG **91.3** overall, 2nd of 37
- Strontium titanate **95.5** overall, 1st of 37
- Synthetic rutile **90.3** overall, 5th of 37

[See how every cut compares](https://digitalgemology.com/learn/cut-performance-index)

## How the DG-Vitruvio Cut performs in seven gemstones

**The DG-Vitruvio Cut performs best in cubic zirconia, where its brilliance and fire together are highest: 98 for brilliance and 87 for fire.** Its fire peaks in moissanite, at 97. In diamond it scores 93 for brilliance and 79 for fire, against 93 and 78 for the T73 benchmark. Its scintillation, 98, comes from its pattern of facets, so it is the same in every stone.

**Brilliance, fire and scintillation of the DG-Vitruvio Cut in seven gemstones, out of 100, with the T73 Round Brilliant benchmark in each**

| Gemstone | Brilliance | Fire | Scintillation |
| --- | --- | --- | --- |
| [Diamond](https://digitalgemology.com/gemstones/diamond) | 93 (T73 benchmark 93) | 79 (T73 benchmark 78) | 98 (T73 benchmark 80) |
| [Moissanite](https://digitalgemology.com/gemstones/moissanite) *Highest fire* | 86 (T73 benchmark 86) | 97 (T73 benchmark 97) | 98 (T73 benchmark 80) |
| [Cubic Zirconia](https://digitalgemology.com/gemstones/cubic-zirconia) *Best overall* *Highest brilliance* | 98 (T73 benchmark 98) | 87 (T73 benchmark 87) | 98 (T73 benchmark 80) |
| [Ruby](https://digitalgemology.com/gemstones/ruby) | 94 (T73 benchmark 94) | 37 (T73 benchmark 37) | 98 (T73 benchmark 80) |
| [Sapphire](https://digitalgemology.com/gemstones/sapphire) | 94 (T73 benchmark 94) | 37 (T73 benchmark 37) | 98 (T73 benchmark 80) |
| [Emerald](https://digitalgemology.com/gemstones/emerald) | 78 (T73 benchmark 78) | 40 (T73 benchmark 39) | 98 (T73 benchmark 80) |
| [Amethyst](https://digitalgemology.com/gemstones/amethyst) | 71 (T73 benchmark 72) | 36 (T73 benchmark 36) | 98 (T73 benchmark 80) |

Score out of 100 T73 Round Brilliant, our benchmark, in the same stone **Best overall:** the highest brilliance and fire together

Brilliance is the share of face-up light that the stone returns. Fire is the share of that light that splits into color. Both come from our face-up light census. Scintillation is the sparkle that the facets give as the stone moves, and we read it from its facets. They are the same figures as the [Cut Performance Wheel](https://digitalgemology.com/tools/cut-performance-wheel?cut=dg-vitruvio&stone=cubic-zirconia), where you can compare the DG-Vitruvio Cut with any other cut. A simulation of the geometry, not a grading report.

Also scored, with the same census, in 19 more gemstones: [topaz](https://digitalgemology.com/gemstones/topaz/dg-vitruvio), [spinel](https://digitalgemology.com/gemstones/spinel/dg-vitruvio), [demantoid](https://digitalgemology.com/gemstones/demantoid/dg-vitruvio), [zircon](https://digitalgemology.com/gemstones/zircon/dg-vitruvio), [tourmaline](https://digitalgemology.com/gemstones/tourmaline/dg-vitruvio), [peridot](https://digitalgemology.com/gemstones/peridot/dg-vitruvio), [tanzanite](https://digitalgemology.com/gemstones/tanzanite/dg-vitruvio), [YAG](https://digitalgemology.com/gemstones/yag/dg-vitruvio), [pyrope](https://digitalgemology.com/gemstones/pyrope/dg-vitruvio), [almandine](https://digitalgemology.com/gemstones/almandine/dg-vitruvio), [spessartine](https://digitalgemology.com/gemstones/spessartine/dg-vitruvio), [grossular](https://digitalgemology.com/gemstones/grossular/dg-vitruvio), [chrysoberyl](https://digitalgemology.com/gemstones/chrysoberyl/dg-vitruvio), [kunzite](https://digitalgemology.com/gemstones/kunzite/dg-vitruvio), [iolite](https://digitalgemology.com/gemstones/iolite/dg-vitruvio), [morganite](https://digitalgemology.com/gemstones/morganite/dg-vitruvio), [GGG](https://digitalgemology.com/gemstones/ggg/dg-vitruvio), [strontium titanate](https://digitalgemology.com/gemstones/strontium-titanate/dg-vitruvio) and [synthetic rutile](https://digitalgemology.com/gemstones/synthetic-rutile/dg-vitruvio). Their head-on figures are in the table below.

### Head-on reflection, critical angle and weight in each stone

The same geometry behaves differently in every material. Light that meets a pavilion facet at less than the critical angle of the stone does not reflect. It passes straight out of the back and shows face-up as a window. For each stone, we measured how much of the pavilion of this model, seen face-down, is steeper than that angle. We also measured what the model weighs at its reference size.

Head-on light in amethyst: a steep facet reflects it, a shallow facet lets it out of the back.

| Stone | Refractive index | Critical angle | Pavilion reflecting head-on light | Weight at this size | Verdict |
| --- | --- | --- | --- | --- | --- |
| [Diamond](https://digitalgemology.com/gemstones/diamond) | 2.417 | 24.4° | 100% | 2.01 ct | Holds head-on light |
| [Moissanite](https://digitalgemology.com/gemstones/moissanite) | 2.648 to 2.691 | 22.2° | 100% | 1.84 ct | Holds head-on light |
| [Cubic Zirconia](https://digitalgemology.com/gemstones/cubic-zirconia) | 2.15 to 2.18 | 27.7° | 100% | 3.31 ct | Holds head-on light |
| [Ruby](https://digitalgemology.com/gemstones/ruby) | 1.762 to 1.770 | 34.6° | 100% | 2.28 ct | Holds head-on light |
| [Sapphire](https://digitalgemology.com/gemstones/sapphire) | 1.762 to 1.770 | 34.6° | 100% | 2.28 ct | Holds head-on light |
| [Emerald](https://digitalgemology.com/gemstones/emerald) | 1.577 to 1.583 | 39.4° | 100% | 1.55 ct | Holds head-on light |
| [Amethyst](https://digitalgemology.com/gemstones/amethyst) | 1.544 to 1.553 | 40.4° | 100% | 1.51 ct | Holds head-on light |
| [Topaz](https://digitalgemology.com/gemstones/topaz) | 1.606 to 1.644 | 38.5° | 100% | 2.02 ct | Holds head-on light |
| [Spinel](https://digitalgemology.com/gemstones/spinel) | 1.712 to 1.747 | 35.7° | 100% | 2.07 ct | Holds head-on light |
| [Demantoid](https://digitalgemology.com/gemstones/demantoid) | 1.881 to 1.888 | 32.1° | 100% | 2.20 ct | Holds head-on light |
| [Zircon](https://digitalgemology.com/gemstones/zircon) | 1.925 to 1.984 | 31.3° | 100% | 2.66 ct | Holds head-on light |
| [Tourmaline](https://digitalgemology.com/gemstones/tourmaline) | 1.603 to 1.655 | 38.6° | 100% | 1.79 ct | Holds head-on light |
| [Peridot](https://digitalgemology.com/gemstones/peridot) | 1.650 to 1.690 | 37.3° | 100% | 1.91 ct | Holds head-on light |
| [Tanzanite](https://digitalgemology.com/gemstones/tanzanite) | 1.685 to 1.707 | 36.4° | 100% | 1.91 ct | Holds head-on light |
| [YAG](https://digitalgemology.com/gemstones/yag) | 1.833 | 33.1° | 100% | 2.60 ct | Holds head-on light |
| [Pyrope](https://digitalgemology.com/gemstones/pyrope) | 1.730 to 1.766 | 35.3° | 100% | 2.15 ct | Holds head-on light |
| [Almandine](https://digitalgemology.com/gemstones/almandine) | 1.750 to 1.830 | 34.8° | 100% | 2.35 ct | Holds head-on light |
| [Spessartine](https://digitalgemology.com/gemstones/spessartine) | 1.790 to 1.830 | 34.0° | 100% | 2.37 ct | Holds head-on light |
| [Grossular](https://digitalgemology.com/gemstones/grossular) | 1.730 to 1.760 | 35.3° | 100% | 2.08 ct | Holds head-on light |
| [Chrysoberyl](https://digitalgemology.com/gemstones/chrysoberyl) | 1.746 to 1.755 | 34.9° | 100% | 2.13 ct | Holds head-on light |
| [Kunzite](https://digitalgemology.com/gemstones/kunzite) | 1.660 to 1.676 | 37.0° | 100% | 1.81 ct | Holds head-on light |
| [Iolite](https://digitalgemology.com/gemstones/iolite) | 1.542 to 1.551 | 40.4° | 100% | 1.49 ct | Holds head-on light |
| [Morganite](https://digitalgemology.com/gemstones/morganite) | 1.572 to 1.600 | 39.5° | 100% | 1.63 ct | Holds head-on light |
| [GGG](https://digitalgemology.com/gemstones/ggg) | 1.970 | 30.5° | 100% | 4.02 ct | Holds head-on light |
| [Strontium titanate](https://digitalgemology.com/gemstones/strontium-titanate) | 2.409 | 24.5° | 100% | 2.93 ct | Holds head-on light |
| [Synthetic rutile](https://digitalgemology.com/gemstones/synthetic-rutile) | 2.616 to 2.903 | 22.5° | 100% | 2.43 ct | Holds head-on light |

Head-on light, first reflection. The [3D Gemstone Simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=dg-vitruvio) traces the full Light Return in each of these gemstones.

## Available in…

The DG-Vitruvio stone by stone: what each gemstone gains and loses in this cut, measured.

- [Diamond](https://digitalgemology.com/gemstones/diamond/dg-vitruvio)
- [Moissanite](https://digitalgemology.com/gemstones/moissanite/dg-vitruvio)
- [Cubic Zirconia](https://digitalgemology.com/gemstones/cubic-zirconia/dg-vitruvio)
- [Ruby](https://digitalgemology.com/gemstones/ruby/dg-vitruvio)
- [Sapphire](https://digitalgemology.com/gemstones/sapphire/dg-vitruvio)
- [Emerald](https://digitalgemology.com/gemstones/emerald/dg-vitruvio)
- [Amethyst](https://digitalgemology.com/gemstones/amethyst/dg-vitruvio)
- [Topaz](https://digitalgemology.com/gemstones/topaz/dg-vitruvio)
- [Spinel](https://digitalgemology.com/gemstones/spinel/dg-vitruvio)
- [Demantoid](https://digitalgemology.com/gemstones/demantoid/dg-vitruvio)
- [Zircon](https://digitalgemology.com/gemstones/zircon/dg-vitruvio)
- [Tourmaline](https://digitalgemology.com/gemstones/tourmaline/dg-vitruvio)
- [Peridot](https://digitalgemology.com/gemstones/peridot/dg-vitruvio)
- [Tanzanite](https://digitalgemology.com/gemstones/tanzanite/dg-vitruvio)
- [YAG](https://digitalgemology.com/gemstones/yag/dg-vitruvio)
- [Pyrope](https://digitalgemology.com/gemstones/pyrope/dg-vitruvio)
- [Almandine](https://digitalgemology.com/gemstones/almandine/dg-vitruvio)
- [Spessartine](https://digitalgemology.com/gemstones/spessartine/dg-vitruvio)
- [Grossular](https://digitalgemology.com/gemstones/grossular/dg-vitruvio)
- [Chrysoberyl](https://digitalgemology.com/gemstones/chrysoberyl/dg-vitruvio)
- [Kunzite](https://digitalgemology.com/gemstones/kunzite/dg-vitruvio)
- [Iolite](https://digitalgemology.com/gemstones/iolite/dg-vitruvio)
- [Morganite](https://digitalgemology.com/gemstones/morganite/dg-vitruvio)
- [GGG](https://digitalgemology.com/gemstones/ggg/dg-vitruvio)
- [Strontium titanate](https://digitalgemology.com/gemstones/strontium-titanate/dg-vitruvio)
- [Synthetic rutile](https://digitalgemology.com/gemstones/synthetic-rutile/dg-vitruvio)

![DG-Vitruvio Cut 3D model](https://digitalgemology.com/img/cuts/bl-vitruvio-3d.webp?v=f2127932)

## Grade the DG-Vitruvio Cut in 3D

Open it in the 3D Gemstone Simulator. Set its carat, color, clarity and cut grade in any of seven gemstones. Turn it under ten kinds of light, and watch its 3D gemstone report change as you go. Free, in your browser.

[Open it in the Simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=dg-vitruvio)

## DG-Vitruvio Cut: questions

### What files come with the DG-Vitruvio Cut 3D model?

Six formats. STEP is the exact faceted solid for CAD, and 3DM is for Rhino. STL and OBJ are meshes. FBX is for Blender, 3ds Max, Maya, Cinema 4D, Unity and Unreal. GLB is for the web and AR. All are in millimeters at real-world scale, with 265 planar facets.

### Is there a faceting diagram for the DG-Vitruvio Cut?

Yes. The cutting files contain a GemCad .asc design (57 + 96 girdles = 153 facets, 96 index, 8-fold mirror-image symmetry) and a printable faceting diagram. They also contain a tier table in CSV, with the angles, indices and cutting order.

### Does the DG-Vitruvio Cut work in sapphire, emerald or amethyst?

We measured the pavilion of this model against the critical angle of each stone. In Diamond, Moissanite, Cubic Zirconia, Ruby, Sapphire, Emerald, Amethyst, the whole pavilion reflects head-on light.

### How accurate is the DG-Vitruvio Cut cutting file?

We check it facet by facet against the 3D model that it was written from. Every crown and pavilion facet within 0.002° of the 3D model (average under 0.001°); the girdle band differs by up to 1.6°, because the 3D model's girdle is more finely divided than the cutting file's. The angles are the ones you set on the machine. The 3D model is the same stone that you render or set.

### How big is the DG-Vitruvio Cut model, and what does it weigh?

The model measures 8.15 x 8.15 x 5.05 mm, which is 2.01 ct in diamond. At the same size, it weighs 1.84 ct in moissanite, 3.31 ct in cubic zirconia, 2.28 ct in ruby, 2.28 ct in sapphire, 1.55 ct in emerald, 1.51 ct in amethyst. You can scale it uniformly to any size: the weight follows the cube of the size.

Twice the size holds eight times the material, so it weighs eight times as much.

### Can I 3D print or cast the DG-Vitruvio Cut model?

Yes. The mesh is watertight and manifold, with outward normals and no duplicate vertices, so it prints and casts without repair. Use the STEP file when you need the exact faceted solid in CAD.

## More brilliants

- [T73 Round Brilliant Cut](https://digitalgemology.com/cuts/t73-round-brilliant)
- [T105 Round Brilliant Cut](https://digitalgemology.com/cuts/t105-round-brilliant)
- [DG-Anteros Cut](https://digitalgemology.com/cuts/dg-anteros)
- [DG-Broken Hearts and Arrows Cut](https://digitalgemology.com/cuts/dg-broken-hearts-and-arrows)

## Get the DG-Vitruvio Cut files

*6 formats* *Millimeters* *Watertight*

### DG-Vitruvio Cut 3D files

The DG-Vitruvio Cut as exact geometry: 265 planar facets, real-world scale, ready for CAD, rendering, printing and casting.

- **STEP** Exact faceted solid for CAD
- **3DM** Rhino, closed mesh on its own layer
- **STL** Watertight mesh for printing and casting
- **OBJ** Mesh for modeling and rendering
- **FBX** Blender, 3ds Max, Maya, Cinema 4D, Unity, Unreal
- **GLB** Web, AR and quick previews

€14.99 · [Personal use](https://digitalgemology.com/licence) [Buy the 3D files](https://digitalgemology.lemonsqueezy.com/checkout/buy/8b7e2e3a-e008-4a2f-9bbe-a04552795fc0)

*GemCad* *96 index*

### DG-Vitruvio Cut cutting files

The DG-Vitruvio Cut as a faceting design: 57 + 96 girdles = 153 facets, 96 index, 8-fold mirror-image symmetry, ready for the machine.

- **.asc** GemCad design file, 96 index gear
- **.csv** Tier table: angles, indices and cutting order
- **Diagram** Printable faceting diagram

€12.99 · [Personal use](https://digitalgemology.com/licence) [Buy the cutting files](https://digitalgemology.lemonsqueezy.com/checkout/buy/75e6d066-b6ce-4a13-8585-55ab3b6188fe)

Not sure the files open in your software? [Get the cube free](https://digitalgemology.lemonsqueezy.com/checkout/buy/2d1ab55f-2bd6-4897-a4cd-f3320f54e99e): the same six formats, for your email address, used only to send them ([privacy](https://digitalgemology.com/privacy#free-sample)).

Questions before you buy? [Email us](mailto:support@digitalgemology.com).