---
title: "Emerald Cut Synthetic rutile: Pros, Cons and Scores"
description: "Emerald Cut in synthetic rutile: brilliance 48, fire 95, leakage 28%, 2 pros and 4 cons against the T73, from our ray-traced light census."
url: https://digitalgemology.com/gemstones/synthetic-rutile/emerald-cut
image: https://digitalgemology.com/img/stone-cuts/emerald-cut-synthetic-rutile-og.jpg?v=5443157c
---

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# Emerald Cut Synthetic rutile: more fire in synthetic rutile than in diamond

**Buy (instant download, personal-use license):** [Emerald Cut 3D files, €9.99 · Personal use](https://digitalgemology.lemonsqueezy.com/checkout/buy/7a254e34-3548-40df-9016-7f9f42e19852) · [Emerald Cut cutting files, €6.99 · Personal use](https://digitalgemology.lemonsqueezy.com/checkout/buy/6fc2df4f-3220-428e-94ba-367bdcc8ecb6) · [Buy the bundle](https://digitalgemology.lemonsqueezy.com/checkout/buy/e5c79ed5-97ce-4c62-8dbe-3a172c6245ba?checkout%5Bdiscount_code%5D=BUNDLE25) · [Buy the bundle](https://digitalgemology.lemonsqueezy.com/checkout/buy/9170b0c0-5357-490e-b6ef-3ce4f7fcd282?checkout%5Bdiscount_code%5D=BUNDLE25) · [Get the cube free](https://digitalgemology.lemonsqueezy.com/checkout/buy/2d1ab55f-2bd6-4897-a4cd-f3320f54e99e)

Brilliance 48 · Fire 95 · Scintillation 72 · in our census, where the T73 scores 81 · 94 · 80 in synthetic rutile

How the Emerald Cut handles light in synthetic rutile, measured: brilliance 48, fire 95 and 28% leakage, set against the T73 in the same stone and against the same cut in diamond.

[Get the files](https://digitalgemology.com/gemstones/synthetic-rutile/emerald-cut#buy) [Open it in the Simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=emerald-cut&stone=synthetic-rutile&ct=1.00&view=angle&lighting=studio&turn=0) [All cuts in synthetic rutile](https://digitalgemology.com/gemstones/synthetic-rutile)

Light Return map of the Emerald Cut in synthetic rutile, face-up, from our own tracer at refractive index 2.616. Red, green and blue return light to the eye; gray leaks.

## Emerald Cut Synthetic rutile

Synthetic rutile has a refractive index of 2.616 to 2.903 and a dispersion of 0.330. Its critical angle, from the low end of that range, is 22.5°, so a round design needs a pavilion of at least 39.4° for head-on light to reflect off both sides of the pavilion and leave through the table. We trace it with one index, 2.760, the midpoint of the published range, and a fire spread of 0.284, 0.86 of the published dispersion. Every picture here is our Light Return tracer at 2.616, and every figure is from the same light census that scores the other gemstones; the 3D Gemstone Simulator shows the Emerald Cut in synthetic rutile live. Synthetic rutile is strongly doubly refractive (birefringence 0.287): its two rays have critical angles of 22.5° and 20.1°. Our census traces one index, so every figure for it is a rough approximation.

The Emerald Cut has 57 facets and a total depth of 68.6% of its width; its pavilion mains sit at 41.0°. In synthetic rutile, the census returns 48 of 100 for brilliance and 95 for fire, against 81 and 94 for the T73, our benchmark, in the same stone; the same Emerald Cut in diamond reads 55 and 87.

## Is synthetic rutile good in an Emerald? Pros and cons, measured

### Pros

- [More fire in synthetic rutile than in diamond](https://digitalgemology.com/gemstones/synthetic-rutile/emerald-cut#pro-fire) 95 vs 87
- [Faces up larger for its weight](https://digitalgemology.com/gemstones/synthetic-rutile/emerald-cut#pro-faceup) 105 vs 100

### Cons

- [A less regular pavilion than the T73](https://digitalgemology.com/gemstones/synthetic-rutile/emerald-cut#con-symm) 64 vs 100
- [Returns less light than the T73 in synthetic rutile](https://digitalgemology.com/gemstones/synthetic-rutile/emerald-cut#con-brilliance) 48 vs 81
- [Heavier than the same cut in diamond](https://digitalgemology.com/gemstones/synthetic-rutile/emerald-cut#con-weight) 2.80 vs 2.31 ct
- [Leaks more light than the T73 in synthetic rutile](https://digitalgemology.com/gemstones/synthetic-rutile/emerald-cut#con-leak) 28 vs 10

Compared with the T73 Round Brilliant in synthetic rutile and with the Emerald Cut in diamond. A difference counts from 3 points (Brilliance, Fire, Tilt, Leakage), 5 (Scintillation, Symmetry), 4% (face-up size per carat) or 5% (weight); Tilt counts as a pro only for a stone within 5 points of the brilliance it is compared with. [How we measure](https://digitalgemology.com/about/how-we-measure).

## All eight scores against the T73

At a glance: the Emerald Cut in synthetic rutile (white) against the T73 Round Brilliant in synthetic rutile (dashed): solid white where it reaches further, hatched where it falls short. Each pro and con is explained, with pictures, below.

Against the T73 Round Brilliant in synthetic rutile: ahead on 1, behind on 7.

- Global 70, the comparison 88, difference −18
- Brilliance 48, the comparison 81, difference −33
- Fire 95, the comparison 94, difference +1
- Scintillation 72, the comparison 80, difference −8
- Spread 96, the comparison 100, difference −4
- Symmetry 64, the comparison 100, difference −36
- Shape-norm 63, the comparison 87, difference −24
- Tilt 85, the comparison 94, difference −9

Face-up light census, a different measure from the Cut Grading Tool; Spread and Shape-norm above 100 sit on the ring. Spread is the census's estimate from depth alone; the face-up size in the pros and cons is measured from each model's outline. [Open it in the Cut Performance Wheel](https://digitalgemology.com/tools/cut-performance-wheel?cut=emerald-cut&stone=synthetic-rutile); these are the same census figures as our [Cut Performance Index](https://digitalgemology.com/learn/cut-performance-index).

## What the Emerald Cut gains in synthetic rutile

### More fire in synthetic rutile than in diamond

**Fire 95** against 87 for the Emerald Cut in diamond: 8 points higher

Fire is the share of the returned light that splits into color at the exit facet: the census traces each exit again at the refractive index minus and plus the fire spread (0.284 in synthetic rutile) and counts a ray as fire when the two directions differ by more than 0.6°. The Emerald Cut reads 95 against 87 for the same cut in diamond. The figure is the census's; the 3D Gemstone Simulator renders synthetic rutile's fire live.

The fire figure is the census's, traced at the refractive index minus and plus the fire spread. [See the fire in the 3D Gemstone Simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=emerald-cut&stone=synthetic-rutile&ct=1.00&view=up&lighting=sun&turn=0): the Emerald Cut in synthetic rutile under the sunny-day lighting.

[Try it yourself: See the fire in the 3D Gemstone Simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=emerald-cut&stone=synthetic-rutile&ct=1.00&view=up&lighting=sun&turn=0)

### Faces up larger for its weight

**Face-up size 105** against 100 for the T73 Round Brilliant in synthetic rutile (T73 = 100): 5% more face-up area for the same weight

Face-up size is the outline's area per carat, measured from each model (T73 = 100): 105 for the Emerald Cut against 100 for the T73. The same volume spread over a longer or shallower outline shows more face for the weight; it is the same in every stone, because specific gravity scales every cut alike.

*Face-up outline of the Emerald Cut at 1.00 ct in synthetic rutile: 6.91 x 4.61 mm, drawn to scale*

Emerald Cut · 6.91 x 4.61 mm at 1.00 ct · Face-up size 105

*Face-up outline of the T73 Round Brilliant at 1.00 ct in synthetic rutile: 6.08 mm, drawn to scale*

T73 Round Brilliant · 6.08 mm at 1.00 ct · Face-up size 100

Both stones weigh 1.00 ct in synthetic rutile and are drawn to the same scale in millimeters, from each cut's own model. Face-up size is the outline's area per carat, with the T73 at 100: a deeper stone, or a rounder outline, spreads less area for its weight.

[Try it yourself: See its size at 1.00 ct in synthetic rutile in the 3D Gemstone Simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=emerald-cut&stone=synthetic-rutile&ct=1.00&view=up&lighting=studio&turn=0)

## What the Emerald Cut gives up in synthetic rutile

### A less regular pavilion than the T73

**Symmetry 64** against 100 for the T73 Round Brilliant in synthetic rutile: 36 points lower

Symmetry reads how evenly the pavilion facets of each design family are cut: 100 − 6 × their scatter in degrees. The Emerald Cut reads 64, the T73 100. It depends on the geometry alone, so it is the same in every stone.

*Facet diagram of the Emerald Cut: its pavilion, seen from below, 57 facets in all*

Emerald Cut · 57 facets · Symmetry 64

*Facet diagram of the T73 Round Brilliant: its pavilion, seen from below, 73 facets in all*

T73 Round Brilliant · 73 facets · Symmetry 100

Symmetry scores how regular the pavilion facets are within the design. Compare how evenly the facets repeat around each pavilion. Drawn from each cut's own model.

[Try it yourself: Compare the Symmetry spoke in the Cut Performance Wheel](https://digitalgemology.com/tools/cut-performance-wheel?cut=emerald-cut&stone=synthetic-rutile)

### Returns less light than the T73 in synthetic rutile

**Brilliance 48** against 81 for the T73 Round Brilliant in synthetic rutile: 33 points lower

Brilliance is the share of the 3,200 census rays that enter the stone and come back out of the crown towards the viewer. In synthetic rutile, whose critical angle is 22.5°, the Emerald Cut returns 48 of 100 and the T73 81. The Emerald Cut's pavilion mains sit at 41.0°, the T73's at 40.8°. The maps below show where each stone's light returns from and where it leaks.

Emerald Cut in synthetic rutile · Brilliance 48

T73 Round Brilliant in synthetic rutile · Brilliance 81

Red, green and blue = light returning to the eye; gray = leakage, light that leaves heading down or stays inside. This is the head-on view; the Brilliance score averages a wider cone of light, so the score can differ from what one picture shows.

**What helps:** [the DG-M5](https://digitalgemology.com/gemstones/synthetic-rutile/dg-m5) reads 97 for brilliance in synthetic rutile, the best of the cuts we score there.

[Try it yourself: Open this Light Return map in the simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=emerald-cut&stone=synthetic-rutile&ct=1.00&view=up&map=1&turn=0)

### Heavier than the same cut in diamond

**2.80 ct** at 6.5 mm, against 2.31 ct for the same cut in diamond (+21%)

Weight follows specific gravity: 4.26 for synthetic rutile against 3.52 for diamond, so the same model at the same size weighs 2.80 ct here and 2.31 ct in diamond, 6.5 mm across. Nothing about the light changes with it.

*Weight of a 6.5 mm Emerald Cut: 2.80 ct in synthetic rutile, 2.31 ct in diamond*

A Emerald Cut 6.5 mm across, weighed from the model's measured volume and each stone's specific gravity.

[Try it yourself: Weights in every gemstone on the Emerald Cut page](https://digitalgemology.com/cuts/emerald-cut#stones)

### Leaks more light than the T73 in synthetic rutile

**Leakage 28** against 10 for the T73 Round Brilliant in synthetic rutile: 18 points higher

Leakage is the share of the census rays that enter the stone and leave through the pavilion, or through the crown heading down. The Emerald Cut leaks 28% in synthetic rutile against 10% for the T73 in synthetic rutile. Grey in the maps below is leaking light; the share under each picture is that picture's own.

Emerald Cut in synthetic rutile · Leakage 28

0° · 33% leak

10° · 36% leak

20° · 39% leak

30° · 46% leak

T73 Round Brilliant in synthetic rutile · Leakage 10

0° · 10% leak

10° · 6% leak

20° · 10% leak

30° · 15% leak

Each frame is the Light Return map with the stone tilted away from you by the angle shown; gray is leakage. The share under each frame is that picture's own.

**What helps:** [the DG-M5](https://digitalgemology.com/gemstones/synthetic-rutile/dg-m5) reads 2% for leakage in synthetic rutile, the best of the cuts we score there.

[Try it yourself: Tilt it yourself in the simulator's light map](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=emerald-cut&stone=synthetic-rutile&ct=1.00&view=up&map=1&turn=0)

## Our verdict on the Emerald Cut in synthetic rutile

Pick the Emerald Cut in synthetic rutile for this: it shows more fire than in diamond and faces up larger for its weight. The catch: it has a less regular pavilion than the T73, returns less light than the T73, weighs more than in diamond and leaks more light than the T73.

If that catch matters more to you, [the DG-M5](https://digitalgemology.com/gemstones/synthetic-rutile/dg-m5) reads 97 for brilliance in synthetic rutile, the best of the cuts we score there.

Every figure on this page is from our light census, traced at one refractive index: a simulation of the geometry, not a grading report. The 3D files and cutting files below are the same Emerald Cut model we traced.

## Emerald Cut Synthetic rutile: questions

### Is the Emerald a good cut for synthetic rutile?

In our census the Emerald Cut returns 48 of 100 for brilliance and 95 for fire in synthetic rutile, against 81 and 94 for the T73 in the same stone. Against that round and against the same cut in diamond it has 2 pros and 4 cons by our thresholds; the summary above names them.

### What pavilion angle does synthetic rutile need?

At least 39.4° for a round design: synthetic rutile's critical angle is 22.5°, from the low end of its refractive index range, and head-on light has to reflect off both sides of the pavilion and leave through the table. The Emerald Cut's pavilion mains sit at 41.0°.

### How much does a Emerald weigh in synthetic rutile?

At 6.5 mm across, 2.80 ct in synthetic rutile, against 2.31 ct for the same cut in diamond (+21%): synthetic rutile's specific gravity is 4.26, diamond's 3.52.

### Can I see the Emerald in synthetic rutile in 3D?

Yes: the 3D Gemstone Simulator renders it live, with synthetic rutile's own refractive index and dispersion. Synthetic rutile is traced by the same light census as the other gemstones, with its refractive index and fire spread derived from published values, so its scores are on the same scale; the pictures here are our Light Return tracer, and the Cut Performance Wheel sets it against any other cut and stone.

## Get the Emerald Cut files

*6 formats* *Millimeters* *Watertight*

### Emerald Cut 3D files

The Emerald Cut as exact geometry: 57 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

€9.99 · [Personal use](https://digitalgemology.com/licence) [Buy the 3D files](https://digitalgemology.lemonsqueezy.com/checkout/buy/7a254e34-3548-40df-9016-7f9f42e19852)

*GemCad* *64 index*

### Emerald Cut cutting files

The Emerald Cut as a faceting design: 49 + 8 girdles = 57 facets, 64 index, 2-fold mirror-image symmetry, ready for the machine.

- **.asc** GemCad design file, 64 index gear
- **.csv** Tier table: angles, indices and cutting order
- **Diagram** Printable faceting diagram

€6.99 · [Personal use](https://digitalgemology.com/licence) [Buy the cutting files](https://digitalgemology.lemonsqueezy.com/checkout/buy/6fc2df4f-3220-428e-94ba-367bdcc8ecb6)

Save with a bundle: the Emerald Cut 3D files are also in [Jewelry Essentials 3D](https://digitalgemology.com/cuts/#bundles), 10 cuts for €29.99 until 1 December, then €39.99 (€99.90 as single files). [Buy the bundle](https://digitalgemology.lemonsqueezy.com/checkout/buy/e5c79ed5-97ce-4c62-8dbe-3a172c6245ba?checkout%5Bdiscount_code%5D=BUNDLE25).

Save with a bundle: the Emerald Cut cutting files are also in [Faceter's Classics](https://digitalgemology.com/cuts/#bundles), 10 cuts for €22.49 until 1 December, then €29.99 (€69.90 as single files). [Buy the bundle](https://digitalgemology.lemonsqueezy.com/checkout/buy/9170b0c0-5357-490e-b6ef-3ce4f7fcd282?checkout%5Bdiscount_code%5D=BUNDLE25).

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).

## More gemstones and cuts

[Synthetic rutile: optical properties and the top ten cuts](https://digitalgemology.com/gemstones/synthetic-rutile) · [The Emerald Cut: specifications, model and files](https://digitalgemology.com/cuts/emerald-cut)

### Other cuts in synthetic rutile

- [T73 Round Brilliant](https://digitalgemology.com/gemstones/synthetic-rutile/t73-round-brilliant)
- [T105 Round Brilliant](https://digitalgemology.com/gemstones/synthetic-rutile/t105-round-brilliant)
- [DG-Vitruvio](https://digitalgemology.com/gemstones/synthetic-rutile/dg-vitruvio)
- [DG-Anteros](https://digitalgemology.com/gemstones/synthetic-rutile/dg-anteros)
- [DG-Broken Hearts and Arrows](https://digitalgemology.com/gemstones/synthetic-rutile/dg-broken-hearts-and-arrows)
- [Baguette Cut](https://digitalgemology.com/gemstones/synthetic-rutile/baguette)
- [Marquise Cut](https://digitalgemology.com/gemstones/synthetic-rutile/marquise)
- [Oval Cut](https://digitalgemology.com/gemstones/synthetic-rutile/oval)
- [Pear Cut](https://digitalgemology.com/gemstones/synthetic-rutile/pear)
- [Radiant Cut](https://digitalgemology.com/gemstones/synthetic-rutile/radiant)
- [Rectangle Cut](https://digitalgemology.com/gemstones/synthetic-rutile/rectangle)
- [Teardrop Cut](https://digitalgemology.com/gemstones/synthetic-rutile/teardrop)
- [Asscher Cut](https://digitalgemology.com/gemstones/synthetic-rutile/asscher)
- [Cushion Cut](https://digitalgemology.com/gemstones/synthetic-rutile/cushion)
- [Emerald Square Cut](https://digitalgemology.com/gemstones/synthetic-rutile/emerald-square)
- [Princess Cut](https://digitalgemology.com/gemstones/synthetic-rutile/princess)
- [Radiant Square Cut](https://digitalgemology.com/gemstones/synthetic-rutile/radiant-square)
- [Square Cut](https://digitalgemology.com/gemstones/synthetic-rutile/square)
- [Triangle Cut](https://digitalgemology.com/gemstones/synthetic-rutile/triangle)
- [Trilliant Cut](https://digitalgemology.com/gemstones/synthetic-rutile/trilliant)
- [Trillion Cut](https://digitalgemology.com/gemstones/synthetic-rutile/trillion)
- [Hexagon Cut](https://digitalgemology.com/gemstones/synthetic-rutile/hexagon)
- [Octagon Cut](https://digitalgemology.com/gemstones/synthetic-rutile/octagon)
- [Portuguese Bird's Nest Cut](https://digitalgemology.com/gemstones/synthetic-rutile/portuguese-birds-nest)
- [Old Single Cut](https://digitalgemology.com/gemstones/synthetic-rutile/old-single)
- [Mazarin Cut](https://digitalgemology.com/gemstones/synthetic-rutile/mazarin)
- [Peruzzi Cut](https://digitalgemology.com/gemstones/synthetic-rutile/peruzzi)
- [Old Mine Cut](https://digitalgemology.com/gemstones/synthetic-rutile/old-mine)
- [Old European Cut](https://digitalgemology.com/gemstones/synthetic-rutile/old-european)
- [T57 Round Brilliant](https://digitalgemology.com/gemstones/synthetic-rutile/t57-round-brilliant)
- [DG-M5](https://digitalgemology.com/gemstones/synthetic-rutile/dg-m5)
- [DG-Miliano](https://digitalgemology.com/gemstones/synthetic-rutile/dg-miliano)
- [DG-Rafaello](https://digitalgemology.com/gemstones/synthetic-rutile/dg-rafaello)
- [DG-Bowtie](https://digitalgemology.com/gemstones/synthetic-rutile/dg-bowtie)
- [DG-Elongated Hexagon](https://digitalgemology.com/gemstones/synthetic-rutile/dg-elongated-hexagon)
- [DG-Octagonal Kite](https://digitalgemology.com/gemstones/synthetic-rutile/dg-octagonal-kite)

### The Emerald Cut in other gemstones

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