Marquise Cut Lab Grown Diamond Engagement Rings

Marquise-Cut Lab-Grown Diamond Engagement Rings 

An engagement ring is the one piece of jewellery made to be looked at, and no shape draws the eye quite like a marquise. Its long, tapering outline runs the length of the finger, catches light from tip to tip, and carries a big look for its weight. It is the shape for someone who wants their ring to be unmistakable, with a little vintage drama and a few centuries of romance behind it. Browse Reia's marquise-cut lab-grown diamond engagement rings in BIS-hallmarked gold, each stone IGI or SDI-certified, hand-finished in our own workshop in India.

Certified lab-grown diamonds · BIS-hallmarked gold · Bright EF–VVS white diamonds, with fancy-colour options · Free resizing & lifetime care · Cash on Delivery · Try them on in Bangalore, Coimbatore & Guwahati

The marquise is one of the most distinctive diamond shapes ever cut, and one of the most quietly regal. Where a round dazzles and an emerald cut impresses with clean lines, a marquise stretches: two fine points and a long, curved body that reads as the longest silhouette on the hand. It has a history to match. The shape is often traced to the 18th-century French court and named for the rank of marquise, which is where its old name, the navette, or "little boat", comes from. That heritage is part of the appeal, a sense of the antique in a brand-new ring.

Every marquise ring in this collection is set with a lab-grown diamond: a real diamond, pure crystallised carbon, a perfect 10 on the Mohs scale, graded to EF colour and VVS clarity by IGI or SDI, and set in BIS-hallmarked gold. Because the diamond is lab-grown, the same budget that would buy a modest mined marquise gets you something visibly larger, whiter and cleaner, conflict-free and fully certified, with room left over for the moment itself.

What Is A Marquise-Cut Diamond?

A marquise cut is an elongated, elliptical diamond that tapers to a point at each end, a shape a little like a boat, which is exactly what its old French name, navette, means. It is a brilliant-style cut, meaning its facets, usually 56 to 58 of them, are arranged to return light as sparkle, and because the stone is so long, that sparkle runs in bright flashes along its whole length.

Two features define how a marquise wears. First, for its carat weight, it has one of the largest face-up surfaces of any diamond shape, so it can look bigger on the hand than a round of the same weight. Second, its long axis, especially when the stone is set pointing up the finger, can give the impression of a longer, more slender finger. That flattering effect is real for many wearers, though it varies from hand to hand, so it is worth trying a marquise on before you decide.

Not every marquise looks the same, and that is a feature rather than a flaw. The difference comes mostly from proportions, and knowing the range helps you shop with confidence:

Slim and elongated marquises have a longer, narrower outline and the most dramatic, needle-like line on the finger.

Balanced and classic marquises sit in the traditional middle, the plush, symmetrical silhouette most people picture when they think of the shape.

Fuller and rounder marquises have a wider body and a softer, more substantial look.

Neither is "better." A slimmer marquise reads more dramatic and modern; a fuller one reads more vintage and gentle. Reia's marquise designs span the range, so you can choose the personality you are drawn to. How to place yourself within it comes next.

Why Couples Choose A Marquise Cut

Every shape has its own reason to be loved. Here is what draws people specifically to the marquise.

It gives the biggest look for the carat: because a marquise spreads its weight across a long, wide face-up area, it can read as a noticeably larger stone than a round of the same carat weight. That stretches a budget further, one of the main reasons buyers choose it.

It lengthens and flatters the finger: the long line of a marquise, particularly when set vertically up the finger, can make the finger look longer and more slender for many wearers. Few shapes flatter the hand quite so directly.

It is unmistakable: the pointed ends and elongated body are instantly recognisable and photograph beautifully. Nobody mistakes a marquise for anything else.

It carries a story: with roots in the 18th-century French court and a name borrowed from nobility, the marquise has vintage romance written into it before you add a single detail.

It is genuinely versatile: a marquise sits beautifully as a clean solitaire, glows brighter framed in a halo, widens into a three-stone or side-stone design, and is a favourite mount for coloured diamonds. It works in white, yellow or rose gold.

How To Choose A Marquise-Cut Engagement Ring

There is no single right marquise, only the right one for the person wearing it. Here is the order we walk every customer through.

Choose your length-to-width ratio. 

This is the first and biggest choice. The length-to-width ratio is simply the diamond's length divided by its width, and it decides whether the stone looks slim and dramatic or full and rounded. Gemological guidance places the classic, balanced window at roughly 1.85 to 2.10, with the broader accepted range running from about 1.75 to 2.25. Aim higher in the range for a long, slim look, around 2.00 for a classic silhouette, or lower for a fuller stone. There is no perfect number; judge it by hand, not on a screen.

Check the cut and the bow-tie.

Every marquise carries some degree of "bow-tie", a shadow shaped like a bow-tie across the centre of the stone, caused by the way its facets sit. In a well-cut marquise, it is faint, and the stone sparkles evenly tip to tip; in a poorly cut one, it becomes a dull, dark band. Keeping the ratio within the ideal window helps, but the only reliable check is to look at the actual stone in good light. Symmetry matters too: the two halves should mirror each other, and the wings should curve evenly to the points.

Mind the points. 

The two tips are the marquise's most vulnerable spot and the part most likely to chip over the years of wear. The standard protection is a V-tip prong, a V-shaped metal tip that cups and shields each point. Most marquise solitaires in this collection use a six-prong setting with the tips secured. If the ring will be worn every day, prioritise clear point protection.

Pick a setting style.

A solitaire lets the outline speak for itself. A halo of small diamonds wraps the centre stone to add size and sparkle. A hidden halo tucks that ring of diamonds under the stone for a surprise from the side. Three-stone and side-stone designs widen the band and add meaning. A vertical, north-south setting maximises the finger-lengthening line. More on these in the styles section below.

Choose your gold. 

White, yellow or rose. This is about skin tone and personal taste more than anything technical. White gold keeps a marquise looking bright and cool; yellow gold leans into its vintage warmth; rose gold gives it a soft, romantic blush. Guidance on each is in the metals section below.

Match it to their lifestyle. 

Because of its points, a marquise rewards a protective setting more than most shapes. For a very hands-on life, choose secure V-tip prongs and a slightly lower profile so the tips are less exposed. If drama is the point, go taller and longer.

Get the size right. 

Ring size is the thing people most often get wrong when buying as a surprise. Borrow a ring the wearer already uses on that finger, or choose a design and let our team help. Most Reia rings can be resized free of charge, and our design consultation can confirm sizing before anything is made.

Find Your Ring In One Minute

If you already know what you want, start here.

Understanding Marquise-Cut Quality: The 4Cs

Diamonds are graded on four characteristics: Cut, Colour, Clarity, and Carat. Here is what each one does to a marquise specifically, in plain language.

Cut: the one that matters most. 

Cut is not shape; it is how well the facets are proportioned, symmetrical, and polished. It is what separates a marquise that glows tip to tip from one that looks flat or shadowed. Three things matter most in a marquise: the symmetry of the two halves, which must mirror each other with evenly curved wings; the length-to-width ratio, which sets the silhouette; and the bow-tie across the centre, which a well-cut stone keeps faint. Because the major labs do not issue a single overall cut grade for fancy shapes the way they do for rounds, this is exactly where certification and a trained eye matter most, and where Reia's own quality control does the work for you.

Colour: how white the stone is. 

Graded D (completely colourless) down to Z (visibly tinted). Reia's house standard is EF, which sits at the top of the near-colourless range and reads bright white in any setting. In yellow or rose gold, you can comfortably carry a touch of warmth, because the metal masks it, and a little warmth often suits a vintage-style marquise.

Clarity: how clean it is inside. 

Graded from Flawless down through VVS, VS, SI, and I, based on tiny natural inclusions. A marquise's busy, brilliant faceting hides small inclusions well, so clarity differences are unlikely to be visible by eye. One shape-specific note: it is worth avoiding inclusions right at the pointed tips, where the stone is most fragile. Reia's standard is VVS, meaning only very, very slight inclusions visible under a loupe, well beyond the point you would ever notice anything by eye, and comfortably clear of the tips.

Carat: the weight (and rough size). 

One carat equals 0.2 grams. Carat is weight, not diameter, and price rises steeply at the round numbers (1.00ct, 2.00ct) because of demand. Two practical notes for marquises: because the shape faces up so large, it looks bigger for its carat than most shapes, so you do not always need to chase a higher weight; and a 0.90ct stone looks almost identical to a 1.00ct while costing noticeably less.

The lab-grown advantage across all four: because growth is controlled, lab diamonds cluster at the high end of colour and clarity. It is genuinely easy to get EF colour and VVS clarity in a lab marquise, grades that command a steep premium in mined diamonds. That is why the same money buys a visibly better stone.

Marquise Cut Vs Oval Cut

The marquise and the oval are the two great elongated shapes, and many couples weigh one against the other. Both flatter the finger, both look larger for their carat, and both work in almost any setting. The differences are real but come down to taste.

The honest summary: choose an oval if you want an elongated look with no sharp points to protect. Choose a marquise if you want the boldest, longest, and most distinctive line on the hand and do not mind a setting that guards the tips. If neither is quite right, a pear gives you one point instead of two, an emerald offers long, clean lines with a calmer sparkle, and a round or cushion keeps things classic.

Choosing Your Metal: White, Yellow & Rose Gold

Every Reia marquise-cut engagement ring is crafted in BIS-hallmarked gold. 18KT is purer and richer in colour; 14KT is slightly harder and a little more affordable; both are excellent for daily wear. The bigger decision is colour, and a marquise looks beautiful in all three.

White gold: cool, bright and contemporary. It makes a marquise's white light look extra crisp and suits cooler skin tones. It is the closest look to platinum at a far friendlier price, and it lets a slim, modern marquise sparkle at its brightest. Best for a clean, diamond-forward look. Shop white gold rings.

Yellow gold: warm, classic, and timeless. Yellow gold leans straight into the marquise's vintage soul. It flatters warm and deeper skin tones, has a rich traditional feel that suits Indian aesthetics beautifully, and never needs replating. Best for heritage-inspired designs. Shop yellow gold rings.

Rose gold: soft, romantic, and a little distinctive. Rose gold's pink warmth is flattering on virtually every skin tone and pairs gorgeously with the marquise's long, graceful line, giving even a classic design a modern, personal feel. Best for romantics who want something a touch different. Shop rose gold rings.

What about platinum? Platinum is naturally white, hypoallergenic, and very durable, but it is considerably more expensive and is a big part of why many engagement rings cost what they do. Reia specialises in BIS-hallmarked gold, and 18KT white gold delivers the same bright-white, daily-wear look for less, which, paired with a lab-grown marquise, is how our rings stay genuinely luxurious without the luxury markup.

Marquise-Cut Engagement Ring Styles At Reia

The marquise's long outline is one of the most adaptable in jewellery. These are the settings it wears best.

Solitaire marquise rings: a single marquise, usually held in a secure six-prong setting with the tips protected, and nothing to distract from the shape. The most timeless choice and, for many, the purest way to show off the silhouette. Explore solitaire settings.

Halo marquise rings: a ring of smaller diamonds frames the centre stone, adding size and sparkle and drawing the eye down the length of the marquise. A halo can make the stone read noticeably larger, a favourite for maximising presence. Explore halo rings.

Hidden-halo marquise rings: the halo of diamonds tucks beneath the stone, invisible from above but sparkling from the side, a modern detail on a vintage shape. Explore hidden-halo rings.

Three-stone marquise rings: a marquise flanked by two side diamonds, symbolising past, present and future, and a setting that gives the ring real width and weight. Explore three-stone rings.

Side-stone marquise rings: tapered, marquise or pear accents run along the band to broaden the design and add sparkle beside the centre stone. Explore side-stone designs.

Vertical (north-south) marquise rings: the stone is set pointing up the finger rather than across it, stretching the line even further for the most flattering, elongating effect. A distinctive, modern way to wear the shape is found throughout this collection.

Coloured-diamond marquise rings (Chromatique): the marquise is a classic mount for fancy colour, and our Chromatique line offers pink, yellow, blue and green lab-grown diamonds cut to glow. Explore Chromatique.

Planning the wedding too? Pair any marquise ring with a matching wedding band.

Custom Marquise-Cut Rings: Designed Around Your Story

If nothing in the collection is exactly right, we will make the ring that is. Reia has an in-house design team and our own workshop, so a custom marquise ring is genuinely bespoke, not a catalogue swap. Bring a Pinterest board, a family heirloom to reimagine, or just a feeling, and we will take it from first sketch to finished ring.

You can personalise:

• Proportions, from a slim, dramatic marquise to a fuller, classic one

• Carat weight, sized to your budget and the look you want

• Setting and style, solitaire, halo, hidden halo, three-stone, side-stone, vertical and beyond

• Gold colour and purity, white, yellow or rose, in 14KT, 18KT or 22KT

• Engraving, a date, initials or a private message inside the band

Book a design consultation or design your own ring online. Sizing and the final design are confirmed with you before anything is crafted.

Why Couples Choose Reia

Certified diamonds, every time: every diamond is IGI or SDI certified, with full documentation of its 4Cs. You know exactly what you are buying.

Independently hallmarked gold: every ring is BIS-hallmarked gold, your assurance of purity stamped on the ring and verified by a third party, not just promised by us.

Genuinely high diamond quality: our EF-colour, VVS-clarity house standard is above the commercial norm, so Reia marquises look bright and clean in person.

Made in our own workshop: hand-finished by skilled Indian artisans, with an in-house design team for true customisation. We control the craft end-to-end.

Pet-friendly: Our stores and studios are pet-friendly, so you’re welcome to bring your pet along for your visit.

The Carat Club: Your ring can grow with you: through our Carat Club and lifetime exchange & buyback, you can upgrade your diamond or restyle your ring later and recover up to 70% of your diamond's value toward the upgrade. Members also enjoy zero making charges.

Buy the way you want: shop online with Cash on Delivery, or book an appointment and see the rings in person at our stores in Bangalore, Coimbatore, and Guwahati.

Lifetime care: free professional cleaning, prong-tightening, and resizing for the life of your ring.

Caring For Your Marquise-Cut Ring

A diamond is the hardest natural material there is, but the two points of a marquise, and the gold and prongs that hold it, still need a little care.

• Protect the points: The tips are the part most prone to chipping. Make sure they sit in secure V-tip prongs, and have those prongs checked regularly so a point is never left exposed.
  
  

• Clean it at home every couple of weeks: soak for 20 to 30 minutes in warm water with a drop of mild dish soap, brush gently behind and around the stone with a soft toothbrush (the ends and the underside are where skin oils and lotion gather and dull the glow), rinse and pat dry with a lint-free cloth.
  
  

• Take it off for the gym, gardening, cleaning with harsh chemicals, swimming pools (chlorine), and applying lotions or perfume.
  
  

• Store it separately in a soft pouch or a lined box; diamonds scratch other jewellery and each other, so do not let rings jostle together in a drawer.
  
  

• Get it professionally checked once or twice a year so a jeweller can inspect the prongs, especially at the points, and re-tighten the setting before a stone ever loosens. Reia offers this for free for the life of the ring.

Shipping, Returns, Warranty & Buyback

• Secure, insured delivery. Every order is fully insured in transit and shipped in tamper-evident packaging. See shipping & delivery.
  

• Cash on Delivery available, so you can pay when your ring arrives.
  

• Easy returns & exchanges. Not right? See our return & exchange policy.
  

• Lifetime exchange & buyback. Upgrade or trade in over time through the buyback programme.
  

• Certification & hallmark with every ring: IGI or SDI diamond certificate and BIS gold hallmark.
  

• Lifetime care warranty: free cleaning, resizing and prong maintenance.

Visit A Reia Store

Rings are difficult to judge from a photograph, and a marquise especially rewards seeing in person, since its length and light are hard to read on screen. Two ways to see one properly.

Come in. Six stores:

• Bengaluru – Jayanagar (Flagship): 11th Main Rd, 4th T Block East, Jayanagar, Bengaluru 560011
  

• Bengaluru – Dickenson Road (Ring Studio): Shop No. 2, Dickenson Road, Bangalore 560042
  

• Bengaluru – HSR Layout (Ring Studio): No. 429, First Floor, 27th Main Road, 1st Sector, HSR Layout, Bengaluru 560102
  

• Coimbatore – R.S. Puram (Flagship): Gee Jay Arcade, E.V. Swamy Rd, R.S. Puram, Coimbatore 641002
  

• Coimbatore – Cross Cut Road (Ring Studio): Door No. 907, Cross Cut Rd, Gandhipuram, Coimbatore 641012
  

• Guwahati – Fancy Bazaar: Fancy Bazaar, Guwahati

Selected designs may be available to view in store, and stock varies by location, so it is best to contact the store before visiting if there is a specific marquise ring you want to see.

Or stay where you are. Book a live video call and an advisor will pick the rings up on camera, turn them in the light, and compare them side by side for you. Camera on or off, whichever you prefer.

See all stores and book a visit · Call +91 63605 80124

Frequently Asked Questions

1. What is a marquise-cut diamond engagement ring?

 It is an engagement ring set with a marquise-cut diamond, an elongated, boat-shaped stone with two pointed ends and a long, curved body. It is a brilliant-style cut, known for its dramatic silhouette, its large look for the carat weight, and the way its long line flatters the finger.

2. Is a marquise cut good for an engagement ring? 

Yes, for the right buyer. A marquise gives a distinctive, elongated silhouette and a large face-up look for its carat weight, and its long line can lengthen and slim the finger. It asks for a little more care than a round: keep the proportions in the ideal range and make sure the pointed ends are protected. If you want something recognisable and different from a round solitaire, it is an excellent choice.

3. Does a marquise diamond look bigger than other shapes? 

For its carat weight, a marquise has one of the largest face-up surfaces of any diamond shape, so it can look larger on the hand than a round diamond of the same weight. This is one of the main reasons buyers choose it.

4. What is the best length-to-width ratio for a marquise diamond? 

There is no single perfect ratio; it depends on the look you want. Gemological guidance points to a classic, balanced window of about 1.85 to 2.10, with the broader accepted range running from roughly 1.75 to 2.25. Higher ratios look slim and elongated; lower ratios look fuller and rounder. Choose the look you prefer and judge it on the hand.

5. What is the bow-tie effect in a marquise diamond? 

It is a shadow shaped like a bow-tie that can appear across the centre of a marquise when light escapes through the bottom of the stone instead of reflecting back. Every marquise has some degree of it; a well-cut one keeps it faint so the stone sparkles evenly from tip to tip, which is one reason cut quality and certification matter with this shape.

6. How are the pointed ends of a marquise protected? 

The two points are the most vulnerable part of the stone. They are usually protected with a V-tip prong, a V-shaped metal tip that cups and shields each point. Most marquise solitaires in this collection use a secured six-prong setting. If the ring is for daily wear, prioritise clear point protection.

7. Are lab-grown marquise diamonds real diamonds? 

Yes. Lab-grown diamonds are pure crystallised carbon, identical in chemistry, hardness and sparkle to mined diamonds. The only difference is that they are grown in a lab instead of mined, and they are independently certified as diamonds. Reia's are IGI or SDI certified.

8. Are marquise lab-grown diamonds durable enough for daily wear? 

Yes. Lab-grown diamonds score 10 out of 10 on the Mohs hardness scale, the same as natural diamonds, making them the most scratch-resistant gem you can wear every day. With a marquise, the one thing to watch is the two points, so choose a setting with secure V-tip prongs and have them checked once or twice a year.

9. What colour and clarity should I choose for a marquise? 

A bright colour grade keeps a marquise looking crisply white. On clarity, you have room to relax, because the shape's busy faceting hides small inclusions well, though it is worth avoiding any inclusion right at the fragile tips. Reia sets EF colour and VVS clarity as standard, comfortably above the point where either would ever be visible by eye.

10. Does a marquise make your finger look longer? 

For many wearers, yes. The long axis of the stone, especially when set vertically up the finger, can create the impression of a longer, more slender finger. The effect varies from hand to hand, so it is worth trying one on.

11. How much does a marquise lab-grown diamond ring cost at Reia? 

Prices depend on carat, the proportions you choose, the setting, and the gold purity. Because the diamond is lab-grown, a marquise at Reia costs far less than a comparable mined stone, letting you choose a larger, cleaner, whiter diamond for the same budget. See current prices on each ring above.

12. Can I customise my marquise-cut engagement ring? 

Yes, fully. Choose the proportions, the carat, the setting, the gold colour and purity, and add an engraving, or design something entirely new with our in-house team. Start with a design consultation.

13. Is a marquise flattering on all hand shapes? 

The marquise is one of the most flattering shapes for the hand, because its long line tends to lengthen and slim the finger. It suits most hands well. If you prefer a fuller look, a lower length-to-width ratio gives a more rounded stone; for the most elongating effect, choose a slimmer stone set vertically.

14. Do marquise diamonds hold their value, and can I resell them? 

Lab-grown diamonds are priced as everyday luxury rather than a financial investment, and open-market resale values are currently limited. What protects your spend at Reia is the Carat Club: you can trade up and recover up to 70% of your diamond's value toward an upgrade.

15. Does Reia ship marquise rings across India, and is delivery insured?

Yes. Orders ship across India, fully insured and in secure packaging, with Cash on Delivery available. See our shipping policy.

16. Can I return or exchange my marquise-cut ring? 

Yes. Reia offers returns and lifetime exchange; see the return & exchange policy for current terms.

17. How do I care for a marquise-cut ring? 

Clean it every couple of weeks in warm, soapy water with a soft brush, paying attention to the ends and underside where oils gather. Take it off for sports, chemicals, and lotions; store it separately, and have the setting checked once or twice a year, especially the points, free for life at Reia.