· 8 min read
Asscher Cut Engagement Ring Pros and Cons, Honestly
An honest look at asscher cut engagement ring pros and cons: the hall-of-mirrors look, why clarity and colour cost more, and where corners hold up.
An Asscher is a square step cut: quiet, architectural, and far less sparkly than a round brilliant. The pros are the distinctive Art Deco look, cropped corners that are less fragile than a sharp square point, and a price per carat that usually sits below a round of the same weight. The cons are real too, because the wide open facets show inclusions and body colour that a brilliant would hide, so you spend more on clarity and colour to get a clean-looking stone, and a 1 carat Asscher generally reads smaller face-up than a 1 carat round.
What an Asscher actually is
According to GIA, the Asscher cut "was first developed in 1902 by Joseph Asscher," and its "58 facets are larger and wide-set (three rows on the top, three rows on the bottom)," with the stone being "nearly octagonal in shape." That octagonal outline comes from the cropped corners. Set into a ring with four prongs at those corners, it reads as a square.
The facet layout is the whole story. Instead of the small triangular and kite facets of a brilliant that chop light into fine flashes, a step cut uses long parallel planes that bounce light back in broad rectangular blocks. That is the "hall of mirrors" effect people describe. It is a different kind of beauty from a round, and it is worth seeing one in person or in 3D before committing, because photos of step cuts flatter them badly.
There is also a modern variant. GIA notes that Edward Asscher, Joseph's grandson, created a version with "16 more facets than the original Asscher cut's 58," adding "two additional rows of eight facets each to the bottom of the stone," and that "the Royal Asscher cut boasts an international patent." A patented 74 facet cut is a narrower market, and you will find far fewer of them in any given weight and grade.
The pros
- The look is genuinely distinct. In a room of round solitaires, an Asscher is the one people ask about. That is not marketing, it is just how uncommon the shape still is.
- Cropped corners are more forgiving than points. A princess cut ends in four sharp corners, which is the most vulnerable spot on the stone. The Asscher's corner is a facet, not a point, so there is less to chip. It still needs prong or bezel coverage at those corners.
- Price per carat is usually lower than a round of the same weight, colour and clarity. Step cuts waste less rough in the cutting, and demand for rounds is higher. GIA's own caution applies though: "Pricing of the various shapes can be complicated, so it's best to compare stones of the same shape, cutting style and similar carat weight."
- It shows off cutting precision. Straight facet junctions either line up or they do not. A well cut Asscher looks crisp in a way no brilliant can.
- It sits low and flat. Step cuts have a broad table and a comparatively shallow face-up profile in a bezel or low-profile setting, which suits hands that catch on things.
The cons
Inclusions show
This is the main cost driver. GIA's buying guidance for fancy shapes says plainly that "The emerald cut or a square step cut will require higher clarity since inclusions might be easier to see." A crystal that vanishes under the sparkle of a round brilliant will sit there visibly in an Asscher's open table.
Body colour shows
The same wide facets that reveal inclusions also pool colour. A J colour round can face up white in white gold; a J colour Asscher more often reads warm. Most people who want a white-looking Asscher land a grade or two higher than they would for a round.
Less sparkle, by design
If the person wearing it wants fire and flash, an Asscher will disappoint them, and no setting fixes that. This is a preference question, not a quality question.
The report will not grade the cut
GIA states: "At this time, an overall cut grade for non-standard round brilliant diamonds or fancy shaped diamonds such as rectangular, oval, or square, is not available on GIA grading reports. But reports do contain an assessment of the diamond's polish and symmetry; a description of its shape and cutting style; its measurements; and a simplified proportion diagram containing a description of girdle thickness." So for an Asscher you are judging cut from polish, symmetry, measurements and your own eyes, not from a single grade. Other labs have introduced their own cut grading for fancy shapes, and their methods differ from each other, so do not treat two labs' fancy-shape assessments as interchangeable.
Face-up size
Asschers carry more of their weight in depth than rounds do. Two stones at the same carat weight can differ noticeably in millimetres across the top. Read the measurements line on the report rather than trusting the carat figure.
Where the money should go: clarity
GIA grades clarity under 10x magnification, and its published definitions are worth reading before you pay for a grade you cannot see:
| Grade | GIA's definition | In an Asscher, face-up | Worth paying for? |
|---|---|---|---|
| IF | "No inclusions visible but does have blemishes" | Flawless to the eye | No. The premium buys a number, not an appearance |
| VVS1 / VVS2 | "Inclusions so slight they are difficult for a skilled grader" | Clean | Rarely. Only if you want the certificate to read that way |
| VS1 | "Inclusions are observed with effort but can be characterized as minor" | Almost always clean to the eye | Yes. This is the sensible landing spot |
| VS2 | Same definition as VS1 | Usually clean, but check the plot | Yes, if you review the clarity plot or the stone itself |
| SI1 | "Inclusions are noticeable" | Often visible in a step cut | Sometimes. Depends entirely on where the inclusion sits |
| SI2 | Same definition as SI1 | Usually visible | No, not for an Asscher |
Source for all quoted definitions: GIA's diamond clarity scale.
The honest version: for a round brilliant we often tell people SI1 is fine. For an Asscher it usually is not, and VS2 is the floor we would start at. But paying up to VVS or IF is money spent on paper. Nobody has ever noticed the difference between a VS1 and an IF across a dinner table.
On colour, G to H covers most people in white metals. If the setting is yellow or rose gold, the warmth of the metal masks a lower grade and I to J becomes a reasonable place to save.
Natural or lab-grown
Both exist in Asscher, and lab-grown stretches the budget considerably at any given clarity and colour, which matters more here than in other shapes precisely because you need higher grades. The terminology is regulated. The FTC's guidance tells sellers to describe these stones as ["laboratory-grown," "laboratory-created," "[manufacturer name]-created," or some other word or phrase of like meaning](https://www.ftc.gov/business-guidance/resources/loupe-advertising-diamond-gemstones-pearls), disclosed immediately before the word "diamond." If a listing is vague about which you are buying, that is the signal to walk. Every stone on our loose diamond search states its origin and carries its own lab report.
Setting and metal
Corners are where knocks land. Four prongs seated on the cropped corners is the classic answer and it protects the right spots. A bezel wraps the whole outline and suits hands that take a beating, though it hides a little of the stone. Halos work but fight the shape's quiet character.
For metal, platinum and 18K white gold both hold prongs well. In Canada, the Competition Bureau's precious metals marking requirements set gold quality marks between a minimum of 9K and a maximum of 24K, with decimal equivalents including ".583 (14K)" and ".750 (18K)", and require that platinum be "at least 95% platinum" or an alloy at least 95% platinum with iridium or ruthenium to be marked as platinum. A quality mark generally has to be accompanied by a Canadian trademark. If a ring carries a karat stamp and nothing else, ask who made it.
Browse engagement ring settings first if you already know the look, or pick the stone first if the shape is the priority.
How to buy one, step by step
- Decide on the look with a real or 3D preview, not a photo. Step cuts photograph poorly.
- Set the budget for the stone, and expect to spend proportionally more of it on clarity and colour than you would for a round.
- Filter to VS2 and above, G to H in white metals, and read the millimetre measurements alongside the carat weight.
- Check polish and symmetry on the report, since there is no overall cut grade to lean on.
- Look at the clarity plot for anything sitting under the table, which is the worst place for an inclusion in a step cut.
- Match the stone to a setting that covers the corners.
- Finish the ring with metal, size and any engraving.
What to do next
Start on the loose diamond search, filter for Asscher, and sort by measurements rather than carat weight to see what actually looks big. Pair a shortlist with two or three settings, preview each in 3D, and compare them side by side before you decide. If you are still weighing shapes, our other buying guides cover clarity, colour and cut in more detail.
Sources
- Gemological Institute of America, "The Asscher Cut: A Cut of Royalty and Reinvention," GIA 4Cs. 4cs.gia.edu
- Gemological Institute of America, "Diamond Clarity: Understanding the Clarity Scale," GIA 4Cs. 4cs.gia.edu
- Gemological Institute of America, "GIA Diamond Grading Reports: Understanding Diamond Grading and Cut Grades," GIA 4Cs. 4cs.gia.edu
- Gemological Institute of America, "Expert Tips for Buying Fancy Shaped Diamonds," GIA 4Cs. 4cs.gia.edu
- U.S. Federal Trade Commission, "In the Loupe: Advertising Diamonds, Gemstones and Pearls," business guidance on the Jewelry Guides. ftc.gov
- Competition Bureau Canada, "Detailed requirements for marking of precious metals," guidance under the Precious Metals Marking Act and Regulations. competition-bureau.canada.ca