Article: Marquise Cut Diamond Guide: Everything You Need to Know Before You Buy
Marquise Cut Diamond Guide: Everything You Need to Know Before You Buy
The Diamond That Was Made for a Smile
The marquise cut has one of the most romantic origin stories in all of jewellery history. According to legend, King Louis XV of France commissioned a diamond to be cut in the shape of the lips of his mistress, the Marchioness Madame de Pompadour. Whether or not the story is entirely true, it captures the spirit of the marquise perfectly: dramatic, flattering, and unapologetically romantic.
Today the marquise is one of the most distinctive diamond shapes you can choose for an engagement ring. Its elongated oval form tapers to pointed ends at both sides, creating a bold silhouette that maximises visual size, elongates the finger, and looks unlike any other cut in fine jewellery.
What Makes the Marquise Cut Unique
The marquise (sometimes called the navette cut, from the French word for "little boat") is a modified brilliant cut. Like a round brilliant, it uses triangular and kite-shaped facets designed to maximise light return and scintillation. Unlike the round brilliant, the elongated outline produces a completely different character on the hand.
The most important characteristic of the marquise is its visual size advantage. Because of its elongated shape, a marquise diamond has a larger surface area than a round brilliant of the same carat weight. A 1.0ct marquise will typically look noticeably bigger on the hand than a 1.0ct round. For clients who want maximum presence without going beyond a certain carat weight or budget, the marquise is one of the best value-for-visual-size options available.
Length-to-Width Ratio: Getting the Proportions Right
The most important decision when selecting a marquise diamond is its length-to-width ratio. This ratio describes how elongated the stone is — a ratio of 1.0 would be perfectly round (which would not be a marquise at all), while a ratio of 2.5 would be extremely elongated and needle-like.
The most flattering range for most fingers is 1.75 to 2.15. Within this range, the stone reads as distinctly marquise while still having enough width to feel substantial on the hand. A ratio below 1.75 can look stubby and lose the elongating effect. A ratio above 2.25 can look very narrow and fragile, and the pointed ends become more vulnerable to chipping.
That said, there is no single perfect ratio — it depends on the wearer's hand and finger width. A broader finger can carry a more elongated marquise; a slender finger can look elegant even with a slightly wider ratio. We always encourage clients to try different proportions in person at our showroom before committing.
The Bowtie: What It Is and Why It Matters
If you have done any research on marquise diamonds, you will have encountered the term "bowtie." This refers to a dark shadow in the shape of a bowtie that appears across the centre of the stone when viewed face-up. It is caused by light leakage in the middle of the elongated shape and is present in virtually every marquise diamond to some degree.
A slight bowtie is normal and not necessarily a problem — in a well-cut stone, it is subtle and not immediately noticeable to the eye. A strong, pronounced bowtie is a significant cut defect that darkens the centre of the stone and makes it look dull on the hand. Because the GIA does not grade cut on fancy shapes, you cannot rely on a certificate to tell you how severe the bowtie is. Always view the stone face-up in natural lighting before buying, and compare at least two or three stones side by side.
At Diamond Ateliers, we only source marquise diamonds where the bowtie is minimal and does not affect the face-up appearance of the stone. This is something we check carefully for every client.
Symmetry: The Most Critical Quality Factor
For a marquise diamond, symmetry matters more than almost any other quality factor. The two pointed ends (called the "wings") must be perfectly aligned with the long axis of the stone. The two curved sides must be mirror images of each other. And both tips must be sharp and symmetrical — an off-centre culet or uneven wing curve is immediately visible once the ring is on the finger.
When evaluating a marquise diamond, check it from multiple angles:
Face-up: are the wings symmetrical? Does the culet (the point at the bottom of the stone) sit exactly in the centre?
Profile: does the stone have an even depth across its length, or does it rise higher on one side?
End-on: when you look at the stone from the pointed end, do both wings curve at the same rate?
Any asymmetry will be visible when the ring is on the hand and will affect how the stone catches light. A GIA certificate grading symmetry as "Excellent" or "Very Good" is a good starting point, but it does not replace looking at the stone yourself.
Colour and Clarity for Marquise Diamonds
Like all elongated fancy shapes, the marquise is more transparent than a round brilliant, which means it shows colour and inclusions more readily. Here is what we recommend:
Colour
For a white gold or platinum setting, aim for G colour or better. The pointed tips of a marquise tend to concentrate any body colour, so a stone that looks fine in the centre can appear slightly yellow at the ends in lower colour grades. If you are setting in yellow or rose gold, H or I colour can still look beautiful — the warm metal masks any warmth in the stone.
Clarity
VS2 is our recommended minimum for a marquise. Because the broad facets are relatively transparent, inclusions in the upper half of the stone (closest to the table) can be visible to the naked eye in SI1 and lower grades. VS1 and above gives you the best assurance of an eye-clean stone, particularly in larger marquise diamonds above 1.0ct.
Setting Styles for Marquise Diamonds
The setting you choose can dramatically change the character of a marquise ring. The most important practical consideration is protecting the tips. The two pointed ends of a marquise are the most fragile part of the stone — a sharp knock can chip an unprotected tip. Any setting you choose should have prongs or metal coverage over both points.
Classic V-Tip Solitaire
The most traditional approach is a solitaire with V-shaped prongs at both tips and two or four prongs along the sides. The V-tips protect the pointed ends while keeping the stone fully visible. This is a timeless, elegant setting that puts the marquise silhouette centre stage.
East-West Marquise
Setting the marquise horizontally — with the points running across the finger rather than up and down — is a modern and increasingly popular choice. This orientation creates a very different look: the stone feels lower and wider on the finger, almost like a baguette. It suits clients who want something distinctive and contemporary.
Halo Setting
Surrounding the marquise with a ring of pavé diamonds creates a halo effect that amplifies the size of the centre stone considerably. Because the marquise is already a visually large shape, a halo can make even a modest carat weight look very substantial. For clients on a tighter budget who still want a statement ring, this is one of the most effective combinations.
Three-Stone Setting
Flanking a marquise with two smaller pear or trillion side stones creates a beautiful and balanced composition. The pointed tips of all three stones echo each other, and the combined silhouette reads as cohesive and intentional. Three-stone marquise rings have a vintage quality that suits clients drawn to Art Deco or Edwardian aesthetics.
Bezel Setting
A bezel — where the entire perimeter of the stone is enclosed in a metal rim — gives maximum protection to the tips and creates a very sleek, modern look. Full bezels are less common on marquise diamonds as they can obscure some of the stone's length, but partial bezels at the tips only (while keeping the sides open) are an elegant compromise.
Marquise Diamonds and Lab-Grown Stones
The marquise cut is available in both natural and lab-grown diamonds, and the visual result is identical. Because a marquise of a given carat weight already looks larger than most other cuts, many clients find that they can choose a slightly smaller carat weight in a marquise than they would in a round brilliant and still achieve the look they want — which can open up interesting budget flexibility, especially when comparing lab and natural options.
At Diamond Ateliers, we have access to a wide selection of lab-grown marquise diamonds in a range of sizes, colours, and clarities. We source each stone individually to ensure the symmetry and bowtie standards we hold our designs to, rather than simply picking from a catalogue.
Wearing a Marquise Ring Every Day
One question we hear often: is a marquise practical for daily wear? The answer is yes — with the right setting. The key is ensuring the tips are protected by V-prongs or a bezel, and that the setting profile is not too high. A lower-profile setting that keeps the stone close to the finger is more secure during everyday activity and less likely to catch on clothing or hair.
Like all fine jewellery, a marquise ring benefits from being removed during heavy physical activity, cleaning, or any work where it might sustain a knock. We recommend an annual check with your jeweller to ensure the prongs remain tight and the stone is secure.
Is the Marquise Cut Right for You?
The marquise is the right choice if you are drawn to a ring that makes a statement, elongates the finger, and carries a sense of history and romance. It is less suited to someone who wants an understated, minimal look — for that, an emerald cut or a round brilliant in a simple solitaire will serve better. But if you want something that people will notice, ask about, and remember, the marquise is difficult to beat.
It is also worth saying that marquise rings suit a very wide range of people — they look beautiful on short fingers because they elongate, and equally beautiful on long fingers where the full shape can really be appreciated.
Design Your Marquise Ring at Diamond Ateliers
Every ring we make at Diamond Ateliers is designed from scratch. We start by sourcing the right stone — evaluating symmetry, bowtie, colour, and clarity in person — and then design the setting around your lifestyle, taste, and budget. Whether you want a classic V-tip solitaire or something completely unique, we build it in 18k gold or platinum to last a lifetime.
Our showroom is at 176 Orchard Rd, #03-05 The Centrepoint, Singapore 238843. Consultations are by appointment and always without obligation.