--- title: "DG-Broken Hearts and Arrows Spessartine: Light Scores" description: "DG-Broken Hearts and Arrows in spessartine: brilliance 95, fire 52, leakage 5%, 1 pro and 4 cons against the T73, from our ray-traced light census." url: https://digitalgemology.com/gemstones/spessartine/dg-broken-hearts-and-arrows image: https://digitalgemology.com/img/stone-cuts/dg-broken-hearts-and-arrows-spessartine-og.jpg?v=1d8e9387 --- > Markdown copy of https://digitalgemology.com/gemstones/spessartine/dg-broken-hearts-and-arrows. 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 # DG-Broken Hearts and Arrows Spessartine: more facets, more sparkle **Buy (instant download, personal-use license):** [DG-Broken Hearts and Arrows Cut 3D files, €14.99 · Personal use](https://digitalgemology.lemonsqueezy.com/checkout/buy/a4014025-fa9c-45e3-91bb-8a860c311743) · [DG-Broken Hearts and Arrows Cut cutting files, €12.99 · Personal use](https://digitalgemology.lemonsqueezy.com/checkout/buy/786cabd2-7d13-4ba2-9bac-d9afdc9002b5) · [Get the cube free](https://digitalgemology.lemonsqueezy.com/checkout/buy/2d1ab55f-2bd6-4897-a4cd-f3320f54e99e) Brilliance 95 · Fire 52 · Scintillation 86 · in our census, where the T73 scores 95 · 53 · 80 in spessartine How the DG-Broken Hearts and Arrows handles light in spessartine, measured: brilliance 95, fire 52 and 5% leakage, set against the T73 in the same stone and against the same cut in diamond. [Get the files](https://digitalgemology.com/gemstones/spessartine/dg-broken-hearts-and-arrows#buy) [Open it in the Simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=dg-broken-hearts-and-arrows&stone=spessartine&ct=1.00&view=angle&lighting=studio&turn=0) [All cuts in spessartine](https://digitalgemology.com/gemstones/spessartine) Light Return map of the DG-Broken Hearts and Arrows in spessartine, face-up, from our own tracer at refractive index 1.79. Red, green and blue return light to the eye; gray leaks. ## DG-Broken Hearts and Arrows Spessartine Spessartine has a refractive index of 1.790 to 1.830 and a dispersion of 0.027. Its critical angle, from the low end of that range, is 34.0°, so a round design needs a pavilion of at least 36.5° for head-on light to reflect off both sides of the pavilion and leave through the table. We trace it with one index, 1.810, the midpoint of the published range, and a fire spread of 0.023, 0.86 of the published dispersion. Every picture here is our Light Return tracer at 1.790, and every figure is from the same light census that scores the other gemstones; the 3D Gemstone Simulator shows the DG-Broken Hearts and Arrows in spessartine live. The DG-Broken Hearts and Arrows has 89 facets, a table of 53.0% of its width and a total depth of 61.7% of its width; its pavilion mains sit at 40.8°. In spessartine, the census returns 95 of 100 for brilliance and 52 for fire, against 95 and 53 for the T73, our benchmark, in the same stone; the same DG-Broken Hearts and Arrows in diamond reads 93 and 78. ## Is spessartine good in a DG-Broken Hearts and Arrows? Pros and cons, measured ### Pros - [More facets, more sparkle](https://digitalgemology.com/gemstones/spessartine/dg-broken-hearts-and-arrows#pro-scint) 86 vs 80 ### Cons - [Less fire in spessartine than in diamond](https://digitalgemology.com/gemstones/spessartine/dg-broken-hearts-and-arrows#con-fire) 52 vs 78 - [Heavier than the same cut in diamond](https://digitalgemology.com/gemstones/spessartine/dg-broken-hearts-and-arrows#con-weight) 1.19 vs 1.01 ct - [Loses more light when tilted than in diamond](https://digitalgemology.com/gemstones/spessartine/dg-broken-hearts-and-arrows#con-tiltStab) 77 vs 93 - [Leaks more in spessartine than in diamond](https://digitalgemology.com/gemstones/spessartine/dg-broken-hearts-and-arrows#con-leak) 5 vs 2 Compared with the T73 Round Brilliant in spessartine and with the DG-Broken Hearts and Arrows 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 DG-Broken Hearts and Arrows in spessartine (white) against the T73 Round Brilliant in spessartine (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 spessartine: ahead on 1, level on 4, behind on 3. - Global 83, the comparison 83, difference 0 - Brilliance 95, the comparison 95, difference 0 - Fire 52, the comparison 53, difference −1 - Scintillation 86, the comparison 80, difference +6 - Spread 100, the comparison 100, difference 0 - Symmetry 99, the comparison 100, difference −1 - Shape-norm 102, the comparison 103, difference −1 - Tilt 77, the comparison 77, difference 0 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=dg-broken-hearts-and-arrows&stone=spessartine); these are the same census figures as our [Cut Performance Index](https://digitalgemology.com/learn/cut-performance-index). ## What the DG-Broken Hearts and Arrows gains in spessartine ### More facets, more sparkle **Scintillation 86** against 80 for the T73 Round Brilliant in spessartine: 6 points higher Scintillation follows the number of facets the stone shows: 100 × (1 − e^(−facets / 45)). The DG-Broken Hearts and Arrows has 89 facets and the T73 73, so 86 against 80. It depends on the geometry alone, so it is the same in every stone. *Facet diagram of the DG-Broken Hearts and Arrows: its crown, seen face-up, 89 facets in all* DG-Broken Hearts and Arrows · 89 facets · Scintillation 86 *Facet diagram of the T73 Round Brilliant: its crown, seen face-up, 73 facets in all* T73 Round Brilliant · 73 facets · Scintillation 80 Scintillation follows the number of facets: more facets, more and smaller flashes as the stone moves. Compare the facet counts under the drawings; each drawing shows only the crown. Drawn from each cut's own model. [Try it yourself: Compare the Scintillation spoke in the Cut Performance Wheel](https://digitalgemology.com/tools/cut-performance-wheel?cut=dg-broken-hearts-and-arrows&stone=spessartine) ## What the DG-Broken Hearts and Arrows gives up in spessartine ### Less fire in spessartine than in diamond **Fire 52** against 78 for the DG-Broken Hearts and Arrows in diamond: 26 points lower 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 (0.023 in spessartine) and counts a ray as fire when the two directions differ by more than 0.6°. The DG-Broken Hearts and Arrows reads 52 against 78 for the same cut in diamond. The figure is the census's; the 3D Gemstone Simulator renders spessartine'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=dg-broken-hearts-and-arrows&stone=spessartine&ct=1.00&view=up&lighting=sun&turn=0): the DG-Broken Hearts and Arrows in spessartine under the sunny-day lighting. **What helps:** [the DG-Elongated Hexagon](https://digitalgemology.com/gemstones/spessartine/dg-elongated-hexagon) reads 91 for fire in spessartine, the best of the cuts we score there. [Try it yourself: See the fire in the 3D Gemstone Simulator](https://digitalgemology.com/tools/3d_gemstone_simulator?cut=dg-broken-hearts-and-arrows&stone=spessartine&ct=1.00&view=up&lighting=sun&turn=0) ### Heavier than the same cut in diamond **1.19 ct** at 6.5 mm, against 1.01 ct for the same cut in diamond (+18%) Weight follows specific gravity: 4.16 for spessartine against 3.52 for diamond, so the same model at the same size weighs 1.19 ct here and 1.01 ct in diamond, 6.5 mm across. Nothing about the light changes with it. *Weight of a 6.5 mm DG-Broken Hearts and Arrows: 1.19 ct in spessartine, 1.01 ct in diamond* A DG-Broken Hearts and Arrows 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 DG-Broken Hearts and Arrows page](https://digitalgemology.com/cuts/dg-broken-hearts-and-arrows#stones) ### Loses more light when tilted than in diamond **Tilt 77** against 93 for the DG-Broken Hearts and Arrows in diamond: 16 points lower Tilt is how much of its face-up brilliance a stone keeps when the census tilts it 20° about its long axis, with 2,200 rays. The DG-Broken Hearts and Arrows keeps 77 against 93 for the same cut in diamond. The tilt strips below show the maps at 0°, 10°, 20° and 30°, with each picture's own leak share under it. DG-Broken Hearts and Arrows in spessartine · Tilt 77 0° · 1% leak 10° · 7% leak 20° · 30% leak 30° · 29% leak DG-Broken Hearts and Arrows in diamond · Tilt 93 0° · 3% leak 10° · 2% leak 20° · 9% leak 30° · 14% leak Tilt is how much of its own face-up light a stone keeps when tilted. 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-Miliano](https://digitalgemology.com/gemstones/spessartine/dg-miliano) reads 84 for tilt in spessartine, the best of the cuts we score there. [Try it yourself: Compare the Tilt spoke in the Cut Performance Wheel](https://digitalgemology.com/tools/cut-performance-wheel?cut=dg-broken-hearts-and-arrows&stone=spessartine&vs=dg-broken-hearts-and-arrows&vsstone=diamond) ### Leaks more in spessartine than in diamond **Leakage 5** against 2 for the DG-Broken Hearts and Arrows in diamond: 3 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 DG-Broken Hearts and Arrows leaks 5% in spessartine against 2% for the same cut in diamond. Grey in the maps below is leaking light; the share under each picture is that picture's own. DG-Broken Hearts and Arrows in spessartine · Leakage 5 0° · 1% leak 10° · 7% leak 20° · 30% leak 30° · 29% leak DG-Broken Hearts and Arrows in diamond · Leakage 2 0° · 3% leak 10° · 2% leak 20° · 9% leak 30° · 14% 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/spessartine/dg-m5) reads 1% for leakage in spessartine, 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=dg-broken-hearts-and-arrows&stone=spessartine&ct=1.00&view=up&map=1&turn=0) ## Our verdict on the DG-Broken Hearts and Arrows in spessartine Pick the DG-Broken Hearts and Arrows in spessartine for this: it has more facets to sparkle with. The catch: it shows less fire than in diamond, weighs more than in diamond, loses more light when tilted than in diamond and leaks more than in diamond. If that catch matters more to you, [the DG-Elongated Hexagon](https://digitalgemology.com/gemstones/spessartine/dg-elongated-hexagon) reads 91 for fire in spessartine, 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 DG-Broken Hearts and Arrows model we traced. ## DG-Broken Hearts and Arrows Spessartine: questions ### Is the DG-Broken Hearts and Arrows a good cut for spessartine? In our census the DG-Broken Hearts and Arrows returns 95 of 100 for brilliance and 52 for fire in spessartine, against 95 and 53 for the T73 in the same stone. Against that round and against the same cut in diamond it has 1 pro and 4 cons by our thresholds; the summary above names them. ### What pavilion angle does spessartine need? At least 36.5° for a round design: spessartine's critical angle is 34.0°, 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 DG-Broken Hearts and Arrows's pavilion mains sit at 40.8°. ### How much does a DG-Broken Hearts and Arrows weigh in spessartine? At 6.5 mm across, 1.19 ct in spessartine, against 1.01 ct for the same cut in diamond (+18%): spessartine's specific gravity is 4.16, diamond's 3.52. ### Can I see the DG-Broken Hearts and Arrows in spessartine in 3D? Yes: the 3D Gemstone Simulator renders it live, with spessartine's own refractive index and dispersion. Spessartine 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 DG-Broken Hearts and Arrows Cut files *6 formats* *Millimeters* *Watertight* ### DG-Broken Hearts and Arrows Cut 3D files The DG-Broken Hearts and Arrows Cut as exact geometry: 89 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/a4014025-fa9c-45e3-91bb-8a860c311743) *GemCad* *96 index* ### DG-Broken Hearts and Arrows Cut cutting files The DG-Broken Hearts and Arrows Cut as a faceting design: 73 + 16 girdles = 89 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/786cabd2-7d13-4ba2-9bac-d9afdc9002b5) 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 [Spessartine: optical properties and the top ten cuts](https://digitalgemology.com/gemstones/spessartine) · [The DG-Broken Hearts and Arrows: specifications, model and files](https://digitalgemology.com/cuts/dg-broken-hearts-and-arrows) ### Other cuts in spessartine - [T73 Round Brilliant](https://digitalgemology.com/gemstones/spessartine/t73-round-brilliant) - [T105 Round Brilliant](https://digitalgemology.com/gemstones/spessartine/t105-round-brilliant) - [DG-Vitruvio](https://digitalgemology.com/gemstones/spessartine/dg-vitruvio) - [DG-Anteros](https://digitalgemology.com/gemstones/spessartine/dg-anteros) - [Baguette Cut](https://digitalgemology.com/gemstones/spessartine/baguette) - [Emerald Cut](https://digitalgemology.com/gemstones/spessartine/emerald-cut) - [Marquise Cut](https://digitalgemology.com/gemstones/spessartine/marquise) - [Oval Cut](https://digitalgemology.com/gemstones/spessartine/oval) - [Pear Cut](https://digitalgemology.com/gemstones/spessartine/pear) - [Radiant Cut](https://digitalgemology.com/gemstones/spessartine/radiant) - [Rectangle Cut](https://digitalgemology.com/gemstones/spessartine/rectangle) - [Teardrop Cut](https://digitalgemology.com/gemstones/spessartine/teardrop) - [Asscher Cut](https://digitalgemology.com/gemstones/spessartine/asscher) - [Cushion Cut](https://digitalgemology.com/gemstones/spessartine/cushion) - [Emerald Square Cut](https://digitalgemology.com/gemstones/spessartine/emerald-square) - [Princess Cut](https://digitalgemology.com/gemstones/spessartine/princess) - [Radiant Square Cut](https://digitalgemology.com/gemstones/spessartine/radiant-square) - [Square Cut](https://digitalgemology.com/gemstones/spessartine/square) - [Triangle Cut](https://digitalgemology.com/gemstones/spessartine/triangle) - [Trilliant Cut](https://digitalgemology.com/gemstones/spessartine/trilliant) - [Trillion Cut](https://digitalgemology.com/gemstones/spessartine/trillion) - [Hexagon Cut](https://digitalgemology.com/gemstones/spessartine/hexagon) - [Octagon Cut](https://digitalgemology.com/gemstones/spessartine/octagon) - [Portuguese Bird's Nest Cut](https://digitalgemology.com/gemstones/spessartine/portuguese-birds-nest) - [Old Single Cut](https://digitalgemology.com/gemstones/spessartine/old-single) - [Mazarin Cut](https://digitalgemology.com/gemstones/spessartine/mazarin) - [Peruzzi Cut](https://digitalgemology.com/gemstones/spessartine/peruzzi) - [Old Mine Cut](https://digitalgemology.com/gemstones/spessartine/old-mine) - [Old European Cut](https://digitalgemology.com/gemstones/spessartine/old-european) - [T57 Round Brilliant](https://digitalgemology.com/gemstones/spessartine/t57-round-brilliant) - [DG-M5](https://digitalgemology.com/gemstones/spessartine/dg-m5) - [DG-Miliano](https://digitalgemology.com/gemstones/spessartine/dg-miliano) - [DG-Rafaello](https://digitalgemology.com/gemstones/spessartine/dg-rafaello) - [DG-Bowtie](https://digitalgemology.com/gemstones/spessartine/dg-bowtie) - [DG-Elongated Hexagon](https://digitalgemology.com/gemstones/spessartine/dg-elongated-hexagon) - [DG-Octagonal Kite](https://digitalgemology.com/gemstones/spessartine/dg-octagonal-kite) ### The DG-Broken Hearts and Arrows in other gemstones - [Diamond](https://digitalgemology.com/gemstones/diamond/dg-broken-hearts-and-arrows) - [Moissanite](https://digitalgemology.com/gemstones/moissanite/dg-broken-hearts-and-arrows) - [Cubic Zirconia](https://digitalgemology.com/gemstones/cubic-zirconia/dg-broken-hearts-and-arrows) - [Ruby](https://digitalgemology.com/gemstones/ruby/dg-broken-hearts-and-arrows) - [Sapphire](https://digitalgemology.com/gemstones/sapphire/dg-broken-hearts-and-arrows) - [Emerald](https://digitalgemology.com/gemstones/emerald/dg-broken-hearts-and-arrows) - [Amethyst](https://digitalgemology.com/gemstones/amethyst/dg-broken-hearts-and-arrows) - [Topaz](https://digitalgemology.com/gemstones/topaz/dg-broken-hearts-and-arrows) - [Spinel](https://digitalgemology.com/gemstones/spinel/dg-broken-hearts-and-arrows) - [Demantoid](https://digitalgemology.com/gemstones/demantoid/dg-broken-hearts-and-arrows) - [Zircon](https://digitalgemology.com/gemstones/zircon/dg-broken-hearts-and-arrows) - [Tourmaline](https://digitalgemology.com/gemstones/tourmaline/dg-broken-hearts-and-arrows) - [Peridot](https://digitalgemology.com/gemstones/peridot/dg-broken-hearts-and-arrows) - [Tanzanite](https://digitalgemology.com/gemstones/tanzanite/dg-broken-hearts-and-arrows) - [YAG](https://digitalgemology.com/gemstones/yag/dg-broken-hearts-and-arrows) - [Pyrope](https://digitalgemology.com/gemstones/pyrope/dg-broken-hearts-and-arrows) - [Almandine](https://digitalgemology.com/gemstones/almandine/dg-broken-hearts-and-arrows) - [Grossular](https://digitalgemology.com/gemstones/grossular/dg-broken-hearts-and-arrows) - [Chrysoberyl](https://digitalgemology.com/gemstones/chrysoberyl/dg-broken-hearts-and-arrows) - [Kunzite](https://digitalgemology.com/gemstones/kunzite/dg-broken-hearts-and-arrows) - [Iolite](https://digitalgemology.com/gemstones/iolite/dg-broken-hearts-and-arrows) - [Morganite](https://digitalgemology.com/gemstones/morganite/dg-broken-hearts-and-arrows) - [GGG](https://digitalgemology.com/gemstones/ggg/dg-broken-hearts-and-arrows) - [Strontium titanate](https://digitalgemology.com/gemstones/strontium-titanate/dg-broken-hearts-and-arrows) - [Synthetic rutile](https://digitalgemology.com/gemstones/synthetic-rutile/dg-broken-hearts-and-arrows)