Emerald Cut Diamond
By Jared James · Last updated 28 October 2026
Quick answer
An emerald cut diamond is a step cut, which means it has long, open facets and neatly clipped corners, and it gives you a rectangular outline with broad flashes of light rather than the fast glitter of a brilliant cut. Clarity, colour and ratio all show up more clearly here than in other shapes, which is why every diamond we sell is VS1 clarity or better and D to F colour; a length-to-width ratio between 1.40 and 1.55 gives a balanced, classic look.
Shape at a glance
| Detail | Typical detail | Buying note |
|---|---|---|
| Facet pattern | Step cut with long parallel facets and clipped corners. | Those long open facets behave like a window, so inclusions and body colour show up more readily than they would in a brilliant cut. |
| Typical ratio | Around 1.30 to 1.60, with 1.40 to 1.55 reading classic to many buyers. | Lower ratios feel squarer and softer, while higher ratios feel longer and more Art Deco. |
| Sparkle | Broad flashes and mirror-like contrast rather than intense glitter. | Judge the pattern of light and dark across the stone, not just the numbers on the grading report. |
| Best for | Minimalist solitaires, bezel settings and Art Deco inspired three-stone rings. | Choose emerald cut when you want quiet structure and clean lines more than maximum sparkle. |
What is an Emerald Cut Diamond?
An emerald cut diamond has a rectangular outline with cropped corners and step-cut facets that run in long parallel lines, and instead of throwing out many tiny flashes the way a round brilliant does, it shows larger planes of light and shadow that shift as the stone moves.
Because the facets are so open, the stone behaves almost like a window, and that clear, drawn-in look is the whole character of the cut, but it also means clarity, colour and symmetry are far more visible than they are in a round, oval or cushion diamond.
What to check before choosing
Best clarity for an emerald cut diamond
Every diamond we sell is VS1 or better, which suits an emerald cut, because a dark inclusion under the table is very hard to hide once those open step facets start behaving like a window. Still check the exact stone in its video.
Best colour grade for an emerald cut diamond
Emerald cuts reveal warmth through the body of the stone more than brilliant cuts do, which is why every diamond we sell is D, E or F colour: it stays white in platinum and white gold as well as in yellow or rose gold.
Ideal ratio for an emerald cut diamond
A length-to-width ratio between 1.40 and 1.55 reads classic to most buyers, while anything lower starts to feel squarer and closer to an Asscher, and anything higher feels longer and more Art Deco. It is the biggest style decision you will make, so compare a few before you settle.
1.35 ratio
A shorter emerald cut, 7.5 by 5.6 mm.
1.43 ratio
Our typical ratio, 6.8 by 4.8 mm.
1.60 ratio
A longer emerald cut, 8.4 by 5.3 mm.
Settings that suit this shape
- A plain solitaire lets the geometry of the cut read clearly, with nothing competing for attention.
- A bezel setting wraps and protects the clipped corners and gives the ring a smooth, architectural edge.
- Tapered baguette side stones sit naturally beside an emerald cut because they repeat the same step-cut language.
Who does emerald cut suit?
Emerald cut suits anyone who prefers polish, structure and broad, slow flashes of light over fast glitter. It is a lovely choice for minimalist, Art Deco and east-west engagement rings.
Watch for
- Inclusions sitting under the open table are much harder to disguise than they would be in a brilliant cut.
- Body colour tends to show more than it does in a brilliant cut, so the colour grade matters.
- A dull or watery emerald cut will not be rescued by a high carat weight, so cut quality has to come first.
Inclusions
Dark marks under the open table are hard to hide in a step cut.
Body colour
Warm body colour shows through the long facets.
Watch: before you buy an emerald cut
A quick walkthrough of what to weigh up before you choose an emerald cut diamond.
Frequently asked questions
- What is an emerald cut diamond?
- An emerald cut diamond is a rectangular step-cut diamond with cropped corners and long, parallel facets. Rather than the fast glitter of a round brilliant, it gives broad flashes of light and a clean, mirrored look that some people call the hall of mirrors effect.
- What is the best clarity for an emerald cut diamond?
- VS1 or better, the standard for every diamond we sell, because the open step facets make inclusions easier to see than they are in most other shapes. Check the exact stone for dark inclusions under the table.
- What is the ideal ratio for an emerald cut diamond?
- Most buyers land on a length-to-width ratio between 1.40 and 1.55. Lower ratios look squarer and closer to an Asscher, while higher ratios look longer and more Art Deco.
- Are emerald cut diamonds more expensive?
- A little, with us, at 1, 2 and 3 carats. On our ring builder on 28 October 2026, a 1 carat emerald cut lab-grown diamond was a median $1,293 against $1,242 for a round. Mined emerald cuts usually cost less than mined rounds, because the cut keeps more of the rough diamond. The final price still comes down to carat, colour, clarity, polish and symmetry.
- What is the difference between an emerald cut and a radiant cut?
- Both have a rectangular outline with cropped corners, but an emerald cut uses step facets and shows broad, slow flashes, while a radiant cut uses brilliant-style facets and shows far more sparkle. Emerald reads architectural and calm, radiant reads lively.
- Are emerald cut diamonds good for engagement rings?
- Yes. Emerald cuts are hard-wearing and elegant for everyday wear, and they look especially good in solitaire, bezel and Art Deco style engagement rings where the clean geometry is the whole point.
