Lab Diamond Marquise Cut: The Vintage Shape Making a Modern Comeback

Why the marquise cut lab diamond is becoming Melbourne's most talked-about engagement ring choice — and how to choose, evaluate, and wear one with complete confidence.

There is a shape that has spent decades waiting for its moment to return. Not hiding — it was always beautiful — but living in the shadow of the round brilliant's undisputed dominance and the oval's more recent resurgence. That shape is the marquise, and in 2026, its moment has unmistakably arrived.

The marquise cut lab diamond Melbourne conversation is happening in jewellery consultations across Collins Street. It is being requested by buyers who have done serious research — who know the shape's history, understand its technical demands, and have a clear picture of the statement they want to make. It is being chosen by eco-conscious buyers who want the drama of a large, distinctive diamond without the environmental and ethical weight of mining. And it is being worn, beautifully, on Melbourne hands that deserve nothing less.

This guide covers everything: the marquise's history and why it is resurging now, how lab-grown technology amplifies its value proposition, the critical technical specifications that determine whether a marquise dazzles or disappoints, and the setting styles that best showcase its magnificent elongated form.

The History of the Marquise: A Shape Born from Royal Romance

The marquise cut has one of the most romantically specific origin stories in diamond history. According to jewellery legend, it was commissioned by King Louis XV of France in the eighteenth century, who requested a diamond cut to resemble the lips of his mistress, the Marquise de Pompadour. Whether or not the story is entirely accurate, it captures something true about the shape's character: it is simultaneously intimate and extravagant, historically rooted and visually bold.

The cut gained significant popularity in the art deco period of the 1920s and 1930s, when its geometric precision and dramatic elongation aligned perfectly with the era's architectural aesthetic. It experienced another wave of popularity in the 1970s and 1980s, when large, bold diamonds were fashionable statements. Then, as tastes shifted toward the round brilliant's more universal sparkle and the princess cut's modern geometry, the marquise retreated from the mainstream — not disappearing, but waiting.

The current revival is different from previous waves in an important way: it is driven not by fashion trends alone, but by a convergence of factors that make the marquise genuinely compelling to a sophisticated, research-informed buyer. Lab-grown diamond technology. The growing influence of vintage and antique jewellery aesthetics. Melbourne's design-conscious jewellery culture. And a generation of buyers who actively seek distinction rather than conformity. The white gold marquise engagement ring australia has become one of the most enquired-about designs at DG & Co. in Melbourne — and the enquiries come from buyers who know exactly what they want.

The Data: Marquise Is Rising Fast

Figure 1: Estimated Marquise Cut Share of Fancy Shape Engagement Ring Sales — Australia, 2018–2026

Year	Share of Fancy Shape Enquiries (each block ≈ 1%)
2018			5%
2019			6%
2020			7%
2021			9%
2022			12%
2023			15%
2024			18%
2025			20%
2026*		22%

* 2026 figures estimated based on H1 2026 enquiry data and industry trend reporting. Source: DG & Co. Melbourne customer enquiry data and Jewellers Association of Australia market observation reports. Percentages reflect marquise share of total fancy-shape (non-round) engagement ring enquiries.

The trend is clear. Marquise cut diamonds have grown from approximately 5% of fancy shape engagement ring enquiries in Australia in 2018 to an estimated 22% in 2026 — a more than fourfold increase over eight years. This growth has accelerated since 2021, coinciding with the mainstream emergence of lab-grown diamonds (which made the marquise's characteristic elongation accessible at lower price points) and the broader vintage revival in fine jewellery aesthetics. According to the Jewellers Association of Australia, vintage-inspired and fancy-shape rings now account for the majority of new engagement ring commissions across Australia's premium jewellery market — a structural shift, not a temporary trend.

Why Lab-Grown Technology Is the Marquise's Perfect Match

The marquise cut has always been visually generous — its elongated form makes a given carat weight appear larger on the finger than a round brilliant of identical weight. A 1.00ct marquise typically looks equivalent to a 1.15–1.25ct round, because its elongation distributes the stone's surface area across a wider visual footprint.

This optical generosity becomes transformative when combined with lab-grown diamond pricing. At the price of a 1.00ct natural marquise, a lab-grown buyer can access a 1.75–2.00ct stone of equivalent quality grades. Combined with the marquise's inherent visual amplification, the resulting ring has a visual presence that is genuinely spectacular — a stone that looks like a 2.50ct natural diamond, achieved at a fraction of the cost.

The Eco-Conscious Dimension

The marquise's current popularity among eco-conscious buyers is not coincidental. The shape's distinctive silhouette makes a statement about individuality and intentionality — qualities that align with the values of buyers who have chosen lab-grown not as a compromise but as a conviction. These buyers want a ring that reflects who they are: sophisticated, considered, and unwilling to accept convention simply because it is conventional.

A lab-grown marquise diamond in a beautifully crafted Melbourne setting is exactly that kind of statement. It is beautiful because it is beautiful — not because it is expensive, not because it is what everyone else is wearing, not because a marketing campaign told the buyer it was the right choice. It is chosen with knowledge and worn with confidence.

Table 1: Lab Marquise vs Natural Marquise — What the Budget Unlocks

The following table shows indicative stone-only pricing comparisons for marquise cut diamonds in the Melbourne market, 2026, and what lab-grown pricing makes possible at each natural diamond price point:

Specification	Natural Marquise	Lab Marquise	Saving	Size Equivalent (Lab)
0.75ct F/VS1	AUD ~$4,800	AUD ~$1,100	~77%	1.25ct lab within budget
1.00ct G/VS2	AUD ~$7,200	AUD ~$1,600	~78%	1.50ct lab within budget
1.50ct F/VS1	AUD ~$14,500	AUD ~$2,400	~83%	2.00ct+ lab within budget
2.00ct G/SI1	AUD ~$22,000	AUD ~$3,200	~85%	2.50ct lab within budget
2.50ct H/VS2	AUD ~$32,000	AUD ~$4,400	~86%	3.00ct+ lab within budget

Prices are indicative for Excellent cut, eye-clean, near-colourless marquise diamonds. Actual pricing varies by specific stone, supplier, and market conditions. "Size equivalent" refers to the approximate lab-grown carat weight achievable for the same total budget including a standard 18ct gold solitaire setting.

The savings at the marquise's larger carat weights are particularly striking. A 2.00ct natural marquise of G colour and SI1 clarity — already a magnificent, commanding stone — costs approximately AUD $22,000 for the stone alone. A lab-grown marquise of equivalent specification costs approximately AUD $3,200. The same budget that buys a 2.00ct natural marquise buys a 2.50ct+ lab-grown stone, with the marquise's optical amplification turning that into a visual equivalent of a natural 3.00ct+ stone. These are not marginal differences. They are transformative ones. For more context on Melbourne market pricing across stone types and specifications, our diamond rings melbourne prices guide provides a comprehensive 2026 breakdown.

The Technical Specification: What Makes a Great Marquise

The marquise is one of the most technically demanding cuts to execute well. Unlike the round brilliant — where industry-wide cut grading provides a reliable shortcut to quality assessment — the marquise has no single universally applied cut grade. The GIA, for example, does not award marquise diamonds an overall cut grade on its standard grading report. This means the buyer must understand the shape's key quality criteria independently, rather than relying on a single grade.

The Critical Criteria

Length-to-width ratio is the single most discussed marquise specification, and for good reason: it determines both the visual character of the stone and the severity of the bowtie effect. A shorter, wider marquise (lower L:W ratio) reads more like an elongated oval; a longer, narrower marquise has a more dramatic, avant-garde character. Neither extreme is wrong — but each suits different hands, styles, and aesthetic intentions.

Table percentages for marquise diamonds should generally fall between 53–63% for optimal light performance. Depth percentages between 58–68% provide the best balance of brilliance and stone integrity. Culet should be none or pointed; any visible culet in a marquise is immediately apparent through the table.

The girdle deserves particular attention in a marquise diamond: the pointed tips are the most vulnerable areas of the stone, and a girdle that is too thin at the tips risks chipping under setting pressure or during wear. Look for a girdle that thickens slightly toward the tips rather than remaining uniformly thin across the stone's perimeter.

Table 2: Length-to-Width Ratio Guide for Marquise Diamonds

L:W Ratio	Visual Effect	Bowtie Risk	Best For
1.50:1	Very short, wide — almost oval	Low	Shorter fingers wanting width
1.65:1	Balanced, gently elongated	Low–Moderate	Most finger types — versatile pick
1.75:1	Classic marquise — the sweet spot	Moderate	Most buyers; traditional elegance
1.85:1	Noticeably elongated, dramatic	Moderate	Longer fingers; bold aesthetic
2.00:1	Very elongated — high fashion	Moderate–High	Fashion-forward; experienced buyer
2.10:1+	Extreme elongation — avant-garde	High	Very long fingers; bold statement only

The 1.75:1 ratio is considered the traditional "sweet spot" for most buyers — elongated enough to showcase the marquise's characteristic silhouette, balanced enough to avoid extreme bowtie risk. The optimal ratio is ultimately a personal preference decision, best made by viewing stones of different proportions in person.

FAQ #1: What is the "bowtie effect" in a marquise diamond, and can it be avoided?

The bowtie effect is a dark, bow-tie-shaped zone that appears across the centre of elongated fancy-shape diamonds — marquise, oval, and pear — caused by the observer's head blocking light return through the table facets at certain angles. Every marquise diamond has some degree of bowtie; the question is whether it is minimal and acceptable, or pronounced and distracting. A minimal bowtie can actually enhance a marquise's character by creating visual depth and dimension. A severe bowtie deadens the centre of the stone and significantly reduces its beauty in normal wear. The bowtie cannot be eliminated entirely, but it can be minimised through careful attention to pavilion angle, depth percentage, and L:W ratio. Stones with a pavilion angle between 42–44 degrees and an L:W ratio in the 1.65–1.85 range typically show the least pronounced bowtie. The only reliable way to assess bowtie severity is to view the stone in person, under different lighting conditions, with expert guidance. At DG & Co. in Melbourne, every marquise stone is examined for bowtie severity before it is presented to a client.

Figure 2: Understanding the Bowtie Effect Across L:W Ratios

Figure 2: The Bowtie Effect — How L:W Ratio and Cut Depth Interact

L:W Ratio	Bowtie Zone Schematic (centre = darkest area)	Severity
1.65:1 (ideal)								Minimal
1.75:1 (sweet spot)								Moderate
2.00:1 (elongated)								Significant

  ■  Full sparkle    ■  Partial light return    ■  Reduced light return    ■  Bowtie (dark zone)

Schematic representation only. Actual bowtie severity is also affected by pavilion depth, crown angle, and individual stone cut quality. Always view in person under varied lighting.

The schematic above illustrates how the bowtie's dark central zone grows more pronounced as the L:W ratio increases. At 1.65:1, the dark zone is narrow and contained — more of a visual accent than a flaw. At 2.00:1, the dark zone spans a significantly larger proportion of the stone's centre, and is visible from conversational distance. Managing this trade-off between elongation drama and optical performance is the central technical challenge of the marquise cut — and the primary reason why expert in-person assessment before purchase is non-negotiable.

Table 3: Setting Style Guide for Marquise Lab Diamonds

The marquise's distinctive silhouette interacts with setting styles differently from round or oval diamonds. Here is how to match setting choice to the stone's character:

Setting Style	Marquise Suitability	Bowtie Effect	Best Pairing
6-prong solitaire	Excellent ✔✔✔	Neutral	Classic, timeless — lets stone dominate
V-tip prong solitaire	Excellent ✔✔✔	Neutral	Protects tips; clean, architectural look
East–west bezel	Good ✔✔	Slightly accentuates	Modern, bold; hides bowtie partly
Halo	Excellent ✔✔✔	Reduces appearance	Maximum visual size; romantic feel
Three-stone (marquise)	Excellent ✔✔✔	Complemented by side stones	Symmetry-enhancing; most popular
Side-stone pavé	Very Good ✔✔✔	Neutral–reducing	Glamorous; adds sparkle to shank
North–south solitaire	Excellent ✔✔✔	Neutral	Traditional orientation; maximises elongation
Tension setting	Moderate ✔	Variable	High risk at pointed tips — specialist only

 

Setting Styles in Depth: How Melbourne Jewellers Are Wearing the Marquise

The V-Tip Prong: Protection and Elegance

The most important setting consideration for any marquise diamond is the protection of its pointed tips — the shape's most distinctive feature and its most vulnerable point. V-tip prongs, which form a V-shaped cradle around each pointed end, are the standard and preferred solution. They hold the tip securely without obscuring it, allowing the full length of the stone to be visible while protecting it from the contact damage that pointed tips are prone to in daily wear. At DG & Co., every marquise solitaire setting is fitted with precision V-tip prongs — a technical detail that makes the difference between a ring that wears beautifully for decades and one that risks tip damage within months. Explore the full range of ring style options at DG & Co. to see how different prong configurations work across the marquise's various orientations.

North–South vs East–West Orientation

The marquise's elongated form presents a choice that round and cushion cuts do not: which direction should the stone point? North–south orientation — with the tips pointing toward the fingertip and knuckle — is the traditional configuration, maximising the stone's apparent length and showcasing its classic silhouette. East–west orientation — with the tips pointing toward the sides of the finger — is a thoroughly modern interpretation that gives the ring a horizontal, architectural quality. Neither is more correct; both are genuinely beautiful. East–west marquise rings have become particularly popular in Melbourne's fashion-conscious jewellery market, where their horizontal line creates a striking, unconventional look.

The Three-Stone Marquise

One of the most popular configurations for marquise lab diamonds in Melbourne is the three-stone design, where a marquise centre stone is flanked by two matching marquise or pear-shaped side stones. When executed with precise symmetry — each side stone a mirror image of the other, the tips aligned with the centre stone's shoulders — this design has an extraordinary visual coherence that few other ring configurations can match. The elongated forms of all three stones create a unified horizontal sweep across the hand that is genuinely spectacular. Our three stone engagement ring melbourne collection includes several configurations that showcase this design language at its finest — and with lab-grown stones, the combined carat weight of three marquise diamonds is achievable at a price point that would have been extraordinary even five years ago.

The Halo Setting

A halo of round brilliant or French-cut diamonds encircling a marquise centre stone creates a visual effect that amplifies the stone's already-dramatic presence. The halo adds approximately 0.25–0.35ct of total diamond weight to the ring, increases the apparent size of the centre stone by an estimated 15–20%, and softens the visual transition between the stone's pointed ends and the shank. It also partially reduces the perceived severity of the bowtie effect by adding light return around the stone's perimeter, compensating for the darker central zone.

A marquise with a pavé halo set in 18ct white gold or platinum is one of Melbourne's most requested engagement ring configurations in 2026. It has the visual impact of a ring costing several times its actual price — and with a lab-grown centre stone, the total budget required is genuinely accessible. For buyers who want maximum presence, a diamond engagement ring with side stones design that combines a marquise halo with a pavé-set shank creates a ring of extraordinary brilliance that draws the eye from across the room.

FAQ #2: Does the marquise cut suit all finger types, or is it better for certain hand shapes?

The marquise's elongating effect is genuinely flattering on most finger types, but it works best on shorter or wider fingers — where its horizontal stretch and vertical elongation create the most dramatic improvement in apparent finger length. On very long, slender fingers, a marquise is also beautiful, but the elongating benefit is less pronounced since the finger is already elongated. The one configuration to avoid on very short fingers is the east–west orientation, which emphasises the finger's width rather than its length. North–south orientation is universally flattering. L:W ratio matters for hand fit: a shorter ratio (1.65:1) can look slightly wide on a narrow finger; a longer ratio (1.85:1) is the more elegant choice for narrower bands and slimmer hands. The definitive answer, of course, is to try stones of different ratios on the actual hand — which is exactly what our Melbourne consultations are designed for.

Metal Choices for the Marquise Lab Diamond

The marquise's visual character interacts with metal choice in ways that are worth thinking through deliberately.

White Gold and Platinum: The Contemporary Classic

White metal — platinum or rhodium-plated white gold — creates the cleanest visual contrast with a white lab-grown diamond, allowing the stone's own colour to dominate and its elongated form to read clearly against the band. For D–G colour lab-grown marquise diamonds, white metal is the optimal choice. White gold requires periodic rhodium plating to maintain its bright, cool-white appearance — typically every one to three years depending on wear. Platinum is naturally white, requires no plating, and develops a beautiful patina over time. For a platinum band wedding ring paired with a platinum marquise engagement ring, the coherence of the metal across both pieces creates a particularly elegant complete look.

Yellow Gold: Warm, Romantic, and Historically Authentic

The marquise's eighteenth-century origins were set in yellow gold, and the combination retains a warmth and romance that white metal cannot replicate. A diamond in gold setting for a marquise lab diamond — particularly in 18ct yellow — carries a historical resonance that feels genuinely appropriate for a shape with this heritage. Yellow gold also flatters H–J colour lab-grown stones, making it possible to achieve a slightly warmer stone at a lower price point without any visible compromise in colour appearance.

Two-Tone Settings

A rising trend in Melbourne's marquise engagement ring market is the two-tone setting — a yellow gold band with white gold or platinum prongs. This combination provides the warmth of yellow gold in the band (which is the most visible element when looking down at the hand) while ensuring the prongs that hold the stone are in white metal, which does not cast yellow reflections into the diamond. It is a technically informed aesthetic choice that produces a particularly beautiful result.

Marquise vs Other Elongated Shapes: How to Choose

The marquise is not the only elongated fancy shape — the oval, the pear, and the elongated cushion each offer their own version of the elongating effect. Understanding how the marquise differs from its siblings helps confirm whether it is the right choice.

The stone oval cut is the marquise's closest visual relative — both elongated, both brilliant-cut, both with a bowtie to manage. The oval is softer and more universally wearable; the marquise is more dramatic and more distinctive. Buyers who want a shape that reads as elegant from any angle tend toward the oval; buyers who want a shape that makes a specific aesthetic declaration tend toward the marquise. Neither is more beautiful in any absolute sense — they are beautiful in different ways.

The pear shares the marquise's pointed tip (on one end) and requires similar V-tip prong protection. It is asymmetric where the marquise is symmetric — which some buyers find more relaxed and approachable, while others find the marquise's perfect bilateral symmetry more compelling.

For buyers who love the idea of an elongated shape but are uncertain whether the marquise's pointed tips suit their lifestyle (particularly for those who work with their hands), the oval offers all of the elongating benefit with none of the tip vulnerability. Both are available in lab-grown diamonds, and both are represented in DG & Co.'s Melbourne collection. For a broader comparison of shapes and how they wear across different lifestyles, our ring style guide provides the full context.

Alternatives and Companions: Building the Complete Look

The marquise engagement ring is a bold, complete statement on its own — but the full jewellery picture extends beyond it, and thinking about companion pieces at the time of purchase produces a more coherent collection over time.

A wedding set designed to complement a marquise engagement ring requires specific consideration: the pointed tips of the marquise mean that standard flat bands may not sit flush against the engagement ring's profile. A contoured or curved band — designed to nest against the engagement ring's shoulder — is the elegant solution. At DG & Co., we design both pieces simultaneously wherever possible, ensuring they work together as intended from the first wearing.

Over time, eternity band settings add to the collection with anniversary gifting. gemstone wedding bands introduce colour into the stack — a sapphire band alongside a white lab marquise engagement ring creates a compelling contrast that feels both contemporary and deeply rooted in jewellery tradition.

For buyers who are drawn to coloured stones rather than white diamonds as the centre stone — perhaps a white gold aquamarine ring in a marquise shape, with its distinctive elongated sea-blue clarity, or a tanzanite for engagement ring in marquise cut for an extraordinarily dramatic colour statement — the marquise shape works magnificently with fine coloured gemstones as well as with diamonds. The elongated form amplifies a coloured stone's saturation and creates a visual impact that rival shapes simply cannot match.

It is also worth noting what the marquise is not, for buyers who encounter alternative stone types during their research. natural moissanite is available in marquise cut and has its own beauty — but it is silicon carbide, not carbon, and its distinctive high dispersion produces a different quality of light than diamond. Lab-grown marquise diamond is physically and optically identical to a natural marquise diamond; moissanite is a different gemstone. Knowing which you are choosing — and why — is essential.

FAQ #3: Is the marquise cut difficult to care for compared to round brilliants?

The marquise requires a degree of care that round brilliants do not, specifically around the pointed tips. The tips are the most vulnerable area of the stone — both to the chipping that can occur if the stone contacts a hard surface without prong protection, and to the prong damage that can occur if V-tip prongs are not checked and re-tipped regularly. Our recommendation for marquise wearers: have the prongs professionally inspected every 12–18 months (more frequently if the ring is worn during physically demanding activities), remove the ring before any activity involving significant impact, and ensure the stone is set with properly fitted V-tip prongs from the outset. With these habits, a marquise diamond ring is as wearable as any other — and significantly more distinctive. At DG & Co. in Melbourne, our aftercare programme includes annual prong inspections as a standard service for rings made in our workshop.

Custom and Bespoke: Making Your Marquise Entirely Your Own

The marquise cut's distinctive character makes it particularly well-suited to custom design — the shape's drama gives a bespoke jeweller significant creative material to work with, and the results can be truly extraordinary. At DG & Co., our custom engagement rings melbourne service allows you to design a marquise ring from the ground up: the specific L:W ratio of the stone, the prong configuration, the band profile, the surface finish, and any design details that make the ring genuinely yours. A marquise in an east–west orientation with a hammered yellow gold band and bezel-set diamond accents along the shank is a very different piece from a north–south marquise in a classic platinum six-prong setting — and both are available through our Melbourne workshop.

Our diamond ring creator tool is a useful first step for buyers who want to explore marquise setting options before committing to a consultation. Pair different marquise proportions with different setting styles and metal choices, and arrive at your in-store conversation with a clear aesthetic direction already established.

For the partner who wants something beautiful but is navigating a considered budget, our cheap proposal ring collection includes marquise options that are crafted with the same care as our most ambitious commissions. The marquise cut's optical generosity means that a modestly sized stone in this shape still has genuine visual presence — making it one of the best value choices in the engagement ring market for budget-conscious buyers who refuse to compromise on beauty.

And for those who are thinking about the full jewellery biography — including pieces that will be gifted over years and decades — a 9ct gold locket bracelet given alongside the marquise engagement ring as a proposal gift adds a personal dimension that the ring alone cannot carry. The marquise is the declaration. The locket is the intimacy.

If you are curious about how the engagement ring and wedding band should relate to each other — a common question for marquise buyers, given the shape's specific fitting requirements — is engagement ring and wedding ring the same is covered in full on our journal. Understanding this distinction before purchasing the engagement ring means the wedding band decision is simpler, better-informed, and more likely to produce a pair of rings that work together beautifully.

The DG & Co. Melbourne Marquise Experience

DG & Co., the melbourne jewellers collins street specialists with the deepest understanding of the marquise cut in the Melbourne market, approaches every marquise consultation with the knowledge that this shape rewards expertise more than almost any other. We examine every stone for bowtie severity before presenting it. We assess L:W ratios against the specific hand size and style of the wearer. We design settings that protect the tips without hiding them, and we finish every piece to the same standard regardless of price point.

Whether you are drawn to a classic north–south six-prong solitaire in platinum, a dramatic east–west bezel in yellow gold, or a spectacular three-stone design with matched marquise side stones, our Melbourne team has the experience to guide you to the right stone, the right setting, and the right result. For those aspiring to the very pinnacle of what the marquise format can achieve, our three carat emerald cut diamond ring demonstrates the level of craft that DG & Co. brings to every commission — and the same hands that made that piece are the ones that will make yours.

For those interested in jewellery remodel — perhaps converting an existing stone into a marquise-cut setting, or reimagining a family piece with a marquise lab-grown diamond at its centre — our Melbourne workshop offers this service with the same precision and care as our new commissions. The marquise is a shape that makes old things new and new things timeless. It is, in every sense, the ideal vehicle for a love story that deserves to be told beautifully.

The Marquise's Moment: Why Now, Why Melbourne, Why You

The marquise cut lab diamond is not a trend that will have passed by the time your ring is made. It is the revival of a shape with three centuries of history — a shape that was chosen by royalty, embraced by the art deco masters, and is now being rediscovered by a generation of buyers who value distinction, craftsmanship, and the particular satisfaction of knowing exactly why they made the choice they made.

In Melbourne — a city that has always had a sophisticated relationship with fine jewellery — the marquise's moment feels entirely right. The design sensibility of this city, the expertise of its finest jewellers, and the values of its buyers all converge around a shape that rewards knowledge and rewards confidence.

If the marquise has been in your mind — if you have been drawn to that silhouette and wondering whether it is the right choice — the answer, for the right buyer, is simply yes. Come and see it in person. Let the shape speak for itself. And let Melbourne's finest help you choose it well.

— DG & Co. Jewellery | Collins Street, Melbourne | Melbourne's Marquise Diamond Specialists