Emerald vs Asscher Cut: Which Should You Choose?
Two step cuts that share a look and split on proportion. If you are drawn to clarity over sparkle, the choice is between these.
Emerald and asscher are both step cuts, so both trade sparkle for a clear, glassy look into the stone — and both show inclusions that a brilliant cut would hide. The difference is shape: emerald is rectangular and elongating, asscher is square. We stock 169 emerald pieces and 95 asscher.
Last updated . Prices are Beyond Carat starting prices and move with the market; we re-check this page quarterly.
Emerald and Asscher Side by Side
| Property | Emerald Cut | Asscher Cut |
|---|---|---|
| Outline | Rectangular, elongated | Square, with cropped corners |
| Faceting | Step cut — long parallel facets | Step cut — concentric, more X-shaped from above |
| Visual character | Long flashes of light, hall-of-mirrors depth | Tighter, more geometric flash from the centre |
| Size for the carat | Elongating — reads larger on the finger | Reads smallest per carat of the two |
| Clarity demands | High — inclusions are visible | High — arguably the most revealing shape we cut |
| Hides inclusions | No — step cuts show them | No — step cuts show them |
| Price per carat | Generally below round at the same weight | Generally below round at the same weight |
| Pieces we stock | 169 | 95 |
How They Actually Differ
Emerald cut is a diamond, not a green gemstone
This confusion is common enough to be worth clearing up before anything else. An emerald cut is a rectangular step cut, and it can be applied to any stone. A lab grown emerald is a green gemstone, an entirely different material.
Every piece on this page is a diamond. If you searched for emerald and expected green, the shape you want is on our gemstones page rather than here.
Bottom line: emerald cut describes the shape of a diamond. It has nothing to do with the color green.
What a step cut is doing
Brilliant cuts — round, oval, cushion, radiant — use small triangular facets to chop light up and throw it back at you as sparkle. Step cuts do the opposite. Long, flat, parallel facets act more like a series of mirrors, producing broad flashes and a clear view straight down into the stone.
People who love step cuts tend to describe them as architectural or restrained, and to find brilliant cuts busy. People who love brilliant cuts tend to find step cuts flat. This is genuinely a matter of taste and not a question of quality — but it is the first thing to settle, because it decides whether either of these shapes is right for you at all.
Bottom line: decide whether you want sparkle or clarity first. These two are both on the clarity side.
Why clarity grade matters more here
Because a step cut lets you see into the stone rather than dazzling you at the surface, it shows what is inside. An inclusion that a round brilliant would scatter into invisibility can be plainly visible in an emerald or an asscher of the same graded clarity.
This is why we hold a VVS–VS floor across everything we set, and it is on these two shapes that the floor earns its keep. If you are cross-shopping a step cut elsewhere, clarity is the grade to scrutinise — more than color, and more than it would matter on a brilliant cut.
Bottom line: on a step cut, clarity is the grade that shows. Do not economise on it here.
Shape: rectangle versus square
An emerald cut is elongated, and like every elongated shape it spreads its weight along one axis. It lengthens the look of the finger and reads larger per carat than a square stone of the same weight.
An asscher is square, so it concentrates weight rather than spreading it, and reads smallest per carat of the two. What it gives back is symmetry — a compact, geometric stone with a strong centre. If the emerald's elongation is what puts you off, that is exactly the asscher's argument.
Bottom line: emerald for length and apparent size, asscher for symmetry and a compact look.
Which is easier to live with
Both have cropped corners rather than points, which makes them more robust than a pear or a marquise and easier to set securely. Neither carries the fragility conversation that pointed shapes do.
Emerald's length means it can want a contoured band in some settings, in the same way an oval does. An asscher's square outline usually sits flush with a straight band. Every diamond we set is graded by IGI, the International Gemological Institute, in D, E or F colour with VVS or VS clarity and an Excellent cut, and the report ships in the box.
Bottom line: both are durable shapes; asscher is marginally the simpler one to pair with a band.
Which Should You Choose?
Choose emerald cut if…
- You want the elongating effect and more apparent size for the carat
- The long, broad flashes of a step cut are the look you are after
- You want a step cut that still reads as a large stone across a room
- You are comfortable planning the wedding band alongside the ring
Choose asscher cut if…
- You want symmetry and a compact, geometric stone
- You find elongated shapes too soft and want defined edges
- You want the least common of the two — asscher is rarer on the hand
- You want a shape that sits flush with a straight band
What we recommend: If you want a step cut to look as big as possible, emerald. If you want it to look deliberate and architectural, asscher. On either, spend on clarity before carat — it is the one shape family where the grade is genuinely visible, and where our VVS–VS floor does the most work.
Frequently Asked Questions
Brilliant cuts (round, oval, pear, cushion, radiant) scatter light and mask inclusions. Step cuts (emerald, asscher) show them, which is why our VVS–VS floor matters most there.
No, and it is a common confusion. Emerald cut is a rectangular step cut applied to a diamond. A lab grown emerald is a green gemstone. Every piece here is a diamond.
Elongated shapes spread weight across the finger, so an emerald cut reads larger than an asscher of the same weight. Round and asscher read smallest per carat of all the shapes we cut.
Yes. Round costs most per carat because it wastes the most rough. Step cuts and elongated shapes generally cost less at the same weight, which is part of the appeal of both shapes here.
It depends on the shape. In step cuts, clarity is visible and worth protecting. In brilliant cuts, carat usually shows more. We hold a D–F, VVS–VS floor on everything, so the question is about size, not compromise.
D, E or F colour; VVS or VS clarity; Excellent cut. On step cuts that clarity floor is doing visible work, which is why we do not go below it.
Still Deciding?
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More comparisons: Oval vs Round · Cushion vs Radiant · Pear vs Marquise