--- title: "Princess Cut Synthetic rutile: Pros, Cons and Scores" description: "Princess Cut in synthetic rutile: brilliance 48, fire 99, leakage 17%, 1 pro and 3 cons against the T73, from our ray-traced light census." url: https://digitalgemology.com/gemstones/synthetic-rutile/princess image: https://digitalgemology.com/img/stone-cuts/princess-synthetic-rutile-og.jpg?v=0dc847b0 --- > Markdown copy of https://digitalgemology.com/gemstones/synthetic-rutile/princess. 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 # Princess Cut Synthetic rutile: more fire in synthetic rutile than in diamond **Buy (instant download, personal-use license):** [Princess Cut 3D files, €9.99 · Personal use](https://digitalgemology.lemonsqueezy.com/checkout/buy/edd2f8c9-a099-4fc2-9104-a65a6561f764) · [Princess Cut cutting files, €6.99 · Personal use](https://digitalgemology.lemonsqueezy.com/checkout/buy/3fad41cf-2af3-441c-9603-4cbed8aadd95) · [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 99 · Scintillation 78 · in our census, where the T73 scores 81 · 94 · 80 in synthetic rutile How the Princess Cut handles light in synthetic rutile, measured: brilliance 48, fire 99 and 17% 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/princess#buy) [Open it in the Simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=princess&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 Princess 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. ## Princess 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 Princess 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 Princess Cut has 85 facets and a total depth of 68.5% of its width; its pavilion mains sit at 41.9°. In synthetic rutile, the census returns 48 of 100 for brilliance and 99 for fire, against 81 and 94 for the T73, our benchmark, in the same stone; the same Princess Cut in diamond reads 57 and 83. ## Is synthetic rutile good in a Princess? Pros and cons, measured ### Pros - [More fire in synthetic rutile than in diamond](https://digitalgemology.com/gemstones/synthetic-rutile/princess#pro-fire) 99 vs 83 ### Cons - [Returns less light than the T73 in synthetic rutile](https://digitalgemology.com/gemstones/synthetic-rutile/princess#con-brilliance) 48 vs 81 - [Heavier than the same cut in diamond](https://digitalgemology.com/gemstones/synthetic-rutile/princess#con-weight) 1.79 vs 1.48 ct - [Leaks more light than the T73 in synthetic rutile](https://digitalgemology.com/gemstones/synthetic-rutile/princess#con-leak) 17 vs 10 Compared with the T73 Round Brilliant in synthetic rutile and with the Princess 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 Princess 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 2, level on 1, behind on 5. - Global 78, the comparison 88, difference −10 - Brilliance 48, the comparison 81, difference −33 - Fire 99, the comparison 94, difference +5 - Scintillation 78, the comparison 80, difference −2 - Spread 95, the comparison 100, difference −5 - Symmetry 100, the comparison 100, difference 0 - Shape-norm 76, the comparison 87, difference −11 - Tilt 100, the comparison 94, difference +6 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=princess&stone=synthetic-rutile); these are the same census figures as our [Cut Performance Index](https://digitalgemology.com/learn/cut-performance-index). ## What the Princess Cut gains in synthetic rutile ### More fire in synthetic rutile than in diamond **Fire 99** against 83 for the Princess Cut in diamond: 16 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 Princess Cut reads 99 against 83 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=princess&stone=synthetic-rutile&ct=1.00&view=up&lighting=sun&turn=0): the Princess 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=princess&stone=synthetic-rutile&ct=1.00&view=up&lighting=sun&turn=0) ## What the Princess Cut gives up in 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 Princess Cut returns 48 of 100 and the T73 81. The Princess Cut's pavilion mains sit at 41.9°, the T73's at 40.8°. The maps below show where each stone's light returns from and where it leaks. Princess 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=princess&stone=synthetic-rutile&ct=1.00&view=up&map=1&turn=0) ### Heavier than the same cut in diamond **1.79 ct** at 6.5 mm, against 1.48 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 1.79 ct here and 1.48 ct in diamond, 6.5 mm across. Nothing about the light changes with it. *Weight of a 6.5 mm Princess Cut: 1.79 ct in synthetic rutile, 1.48 ct in diamond* A Princess 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 Princess Cut page](https://digitalgemology.com/cuts/princess#stones) ### Leaks more light than the T73 in synthetic rutile **Leakage 17** against 10 for the T73 Round Brilliant in synthetic rutile: 7 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 Princess Cut leaks 17% 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. Princess Cut in synthetic rutile · Leakage 17 0° · 26% leak 10° · 24% leak 20° · 29% leak 30° · 29% 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=princess&stone=synthetic-rutile&ct=1.00&view=up&map=1&turn=0) ## Our verdict on the Princess Cut in synthetic rutile Pick the Princess Cut in synthetic rutile for this: it shows more fire than in diamond. The catch: it 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 Princess Cut model we traced. ## Princess Cut Synthetic rutile: questions ### Is the Princess a good cut for synthetic rutile? In our census the Princess Cut returns 48 of 100 for brilliance and 99 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 1 pro and 3 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 Princess Cut's pavilion mains sit at 41.9°. ### How much does a Princess weigh in synthetic rutile? At 6.5 mm across, 1.79 ct in synthetic rutile, against 1.48 ct for the same cut in diamond (+21%): synthetic rutile's specific gravity is 4.26, diamond's 3.52. ### Can I see the Princess 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 Princess Cut files *6 formats* *Millimeters* *Watertight* ### Princess Cut 3D files The Princess Cut as exact geometry: 93 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/edd2f8c9-a099-4fc2-9104-a65a6561f764) *GemCad* *96 index* ### Princess Cut cutting files The Princess Cut as a faceting design: 81 + 4 girdles = 85 facets, 96 index, 4-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 €6.99 · [Personal use](https://digitalgemology.com/licence) [Buy the cutting files](https://digitalgemology.lemonsqueezy.com/checkout/buy/3fad41cf-2af3-441c-9603-4cbed8aadd95) Save with a bundle: the Princess 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 Princess 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 Princess Cut: specifications, model and files](https://digitalgemology.com/cuts/princess) ### 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) - [Emerald Cut](https://digitalgemology.com/gemstones/synthetic-rutile/emerald-cut) - [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) - [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 Princess Cut in other gemstones - [Cubic Zirconia](https://digitalgemology.com/gemstones/cubic-zirconia/princess) - [Ruby](https://digitalgemology.com/gemstones/ruby/princess) - [Sapphire](https://digitalgemology.com/gemstones/sapphire/princess) - [Diamond](https://digitalgemology.com/gemstones/diamond/princess) - [Moissanite](https://digitalgemology.com/gemstones/moissanite/princess) - [Emerald](https://digitalgemology.com/gemstones/emerald/princess) - [Amethyst](https://digitalgemology.com/gemstones/amethyst/princess) - [Topaz](https://digitalgemology.com/gemstones/topaz/princess) - [Spinel](https://digitalgemology.com/gemstones/spinel/princess) - [Demantoid](https://digitalgemology.com/gemstones/demantoid/princess) - [Zircon](https://digitalgemology.com/gemstones/zircon/princess) - [Tourmaline](https://digitalgemology.com/gemstones/tourmaline/princess) - [Peridot](https://digitalgemology.com/gemstones/peridot/princess) - [Tanzanite](https://digitalgemology.com/gemstones/tanzanite/princess) - [YAG](https://digitalgemology.com/gemstones/yag/princess) - [Pyrope](https://digitalgemology.com/gemstones/pyrope/princess) - [Almandine](https://digitalgemology.com/gemstones/almandine/princess) - [Spessartine](https://digitalgemology.com/gemstones/spessartine/princess) - [Grossular](https://digitalgemology.com/gemstones/grossular/princess) - [Chrysoberyl](https://digitalgemology.com/gemstones/chrysoberyl/princess) - [Kunzite](https://digitalgemology.com/gemstones/kunzite/princess) - [Iolite](https://digitalgemology.com/gemstones/iolite/princess) - [Morganite](https://digitalgemology.com/gemstones/morganite/princess) - [GGG](https://digitalgemology.com/gemstones/ggg/princess) - [Strontium titanate](https://digitalgemology.com/gemstones/strontium-titanate/princess)