DG-Elongated Hexagon Moissanite: Pros & Cons

Six sides drawn out long, square points, and the same steps on the front as on the back: two steps either side of a six-facet girdle, a table in front and a matching flat behind. It was drawn for emerald. The model counts 32 facets, with a 50.0% table, a 36.0° crown mirrored by a 36.0° pavilion, an outline 1.7 times as long as wide and a depth of 45.3%.

A note on the census: the back flat is a window by design. Our census books every ray that passes through that flat as lost, while the cut page's head-on figures leave the window out. Read its brilliance and leakage with that in mind: they are the lowest and the highest we measure in moissanite.

With front and back finished alike, it looks the same whichever way it turns: the point of it in a pendant, or in an open setting that shows the back.

DG-Elongated Hexagon in moissanite: pros and cons

Pros

Lighter than in diamond 1.65 vs 1.80 ct
A little more face for its weight than a round 107 vs 100

Cons

The least light we measure in moissanite 20 vs 86
More than half the light leaks 58 vs 7
Fewer flashes than a round 51 vs 80
Keeps less of its light when tipped 73 vs 100

Compared with the T73 Round Brilliant in moissanite and with the DG-Elongated Hexagon 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.

All eight scores against the T73

At a glance: the DG-Elongated Hexagon in moissanite (white) against the T73 Round Brilliant in moissanite (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 moissanite: ahead on 1, behind on 7.

Global54, the comparison 91, difference −37
Brilliance20, the comparison 86, difference −66
Fire93, the comparison 97, difference −4
Scintillation51, the comparison 80, difference −29
Spread111, the comparison 100, difference +11
Symmetry73, the comparison 100, difference −27
Shape-norm26, the comparison 93, difference −67
Tilt73, the comparison 94, difference −21

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

What moissanite gains in DG-Elongated Hexagon

Lighter than in diamond

1.65 ct at 6.5 mm, against 1.80 ct for the same cut in diamond (−9%)

Moissanite's specific gravity is 3.22, diamond's 3.52, so the same hexagon, cut to the same millimetres, carries fewer carats.

A DG-Elongated Hexagon 6.5 mm across, weighed from the model's measured volume and each stone's specific gravity.

Try it yourself: Weights in all seven gemstones on the DG-Elongated Hexagon page

A little more face for its weight than a round

Face-up size 107 against 100 for the T73 Round Brilliant in moissanite (T73 = 100): 7% more face-up area for the same weight

Face-up size is the outline area a model offers per carat, against 100 for the T73. At 45.3% deep, it covers 107 where a round of the same weight covers 100.

DG-Elongated Hexagon · 9.36 x 5.50 mm at 1.00 ct · Face-up size 107

T73 Round Brilliant · 6.68 mm at 1.00 ct · Face-up size 100

Both stones weigh 1.00 ct in moissanite and are drawn to the same scale in millimetres, 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 moissanite in the 3D Gemstone Simulator

The catch with a DG-Elongated Hexagon moissanite

The least light we measure in moissanite

Brilliance 20 against 86 for the T73 Round Brilliant in moissanite: 66 points lower

20 against 86, the lowest of every cut we measure in moissanite. The census counts the light through the back window as lost; in diamond the figure is lower still, 12.

Dg-elongated hexagon in moissanite face-up Light Return map: red, green and blue show where the light returns from, grey shows where it leaks (Brilliance 20) — Red, green and blue = light returning to the eye; grey = light leaving through the pavilion. 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.

T73 round brilliant in moissanite face-up Light Return map: red, green and blue show where the light returns from, grey shows where it leaks (Brilliance 86) — Red, green and blue = light returning to the eye; grey = light leaving through the pavilion. 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: For a long step cut with more light, the Emerald Cut returns 51; for the most light, DG-M5 Moissanite at 98. Neither reads the same from both sides.

Try it yourself: Open this Light Return map in the simulator

More than half the light leaks

Leakage 58 against 7 for the T73 Round Brilliant in moissanite: 51 points higher

58% of the light in our census leaves through the back, where the T73 loses 7%: the highest share we measure in moissanite. Much of it goes through the window, by design.

Dg-elongated hexagon in moissanite tilted 0 degrees: Light Return map, 70% of the face leaking — Each frame is the Light Return map with the stone tilted away from you by the angle shown; grey is light leaving through the pavilion. The share under each frame is that picture's own.

Dg-elongated hexagon in moissanite tilted 10 degrees: Light Return map, 70% of the face leaking — Each frame is the Light Return map with the stone tilted away from you by the angle shown; grey is light leaving through the pavilion. The share under each frame is that picture's own.

What helps: The window is part of the design, and we have not measured other angles; the fix our data supports is a different cut. The Emerald Cut leaks 27%, DG-Anteros Moissanite 3%.

Try it yourself: Tilt it yourself in the simulator's light map

Fewer flashes than a round

Scintillation 51 against 80 for the T73 Round Brilliant in moissanite: 29 points lower

Step facets are few and long: 32 here against 73, for Scintillation 51 against 80. Like every scintillation figure, it depends on the facets alone, not on moissanite.

DG-Elongated Hexagon · 32 facets · Scintillation 51

T73 Round Brilliant · 73 facets · Scintillation 80

Scintillation follows the number of facets: more facets, more and smaller flashes as the stone moves. Count the facets in each crown. Drawn from each cut's own model.

What helps: This is the step plan. For more flashes on a long outline, the Oval scores 87, from far more facets.

Try it yourself: Compare the Scintillation spoke in the Cut Performance Wheel

Keeps less of its light when tipped

Tilt 73 against 100 for the DG-Elongated Hexagon in diamond: 27 points lower

At 20° of tip it keeps 73 of its face-up light, against 100 for the same cut in diamond and 94 for the T73 in moissanite. We count the larger gap, the one to diamond, though the diamond figure is a share of very little light (Brilliance 12).

What helps: A bright round holds its light far better: DG-Vitruvio Moissanite keeps 94 at 20° with Brilliance 86.

Try it yourself: Compare the Tilt spoke in the Cut Performance Wheel

Who DG-Elongated Hexagon in moissanite suits

DG-Elongated Hexagon suits pendants and open settings where both faces show and the stone is meant to be looked through. For brilliance, it is the weakest cut we measure in moissanite: 20, the lowest in this stone.

It was drawn for emerald: see DG-Elongated Hexagon Emerald for the stone it was made for, and the DG-Elongated Hexagon page for every gemstone. For a long moissanite with far more light, the Marquise.

Moissanite is doubly refractive, and in a step cut with a window both ways, doubled facet edges may show; our renders trace a single index.

DG-Elongated Hexagon Moissanite: questions

Why does DG-Elongated Hexagon score so low in moissanite?

By design, its back flat lets light straight through, and our census books that light as lost: Brilliance 20, with 58% leaking. The head-on figures on its cut page exclude the window.

Is DG-Elongated Hexagon moissanite good for a pendant?

Front and back are cut alike, so it shows the same face either way round. For brilliance it is weak in moissanite: 20 against 86 for the T73.

What does a 6.5 mm wide DG-Elongated Hexagon weigh in moissanite?

1.65 ct, against 1.80 ct in diamond.

Get the DG-Elongated Hexagon Cut files

6 formatsMillimetresWatertight

DG-Elongated Hexagon Cut 3D files

The DG-Elongated Hexagon Cut as exact geometry: 32 planar facets, real-world scale, ready for CAD, rendering, printing and casting.

STEPExact faceted solid for CAD
3DMRhino, closed mesh on its own layer
STLWatertight mesh for printing and casting
OBJMesh for modelling and rendering
FBXBlender, 3ds Max, Maya, Cinema 4D, Unity, Unreal
GLBWeb, AR and quick previews

€9.99 · Personal useBuy the 3D files

GemCad96 index

DG-Elongated Hexagon Cut cutting files

The DG-Elongated Hexagon Cut as a faceting design: 26 + 6 girdles = 32 facets, 96 index, 2-fold mirror-image symmetry, ready for the machine.

.ascGemCad design file, 96 index gear
.csvTier table: angles, indices and cutting order
DiagramPrintable faceting diagram

€9.99 · Personal useBuy the cutting files

Questions before you buy? Email us.

More gemstones and cuts

Moissanite: optical properties and the top ten cuts · The DG-Elongated Hexagon: specifications, model and files

DG-Elongated Hexagon Moissanite: lighter than diamond, with a little more face per carat than a round