What Shapes Are Engagement Ring Buyers Actually Choosing? 2026 Consumer Data from 47th Street

Oval, marquise, and old mine cuts are dominating engagement ring sales on New York's 47th Street in mid-2026, based on firsthand retailer interviews published by Rapaport News on June 29, 2026. The data comes directly from jewelers working the floor of the world's most concentrated diamond retail corridor — making it one of the most grounded, real-time reads on what American engagement ring buyers are actually doing, not just searching for.

These findings align with, and in some cases sharpen, broader 2026 trend reports:

Factor	47th Street Retailer Data (Rapaport, June 2026)	The Knot Real Weddings Study 2026	National Jeweler / Industry Experts 2026
Top shapes	Oval, marquise, old mine, cushion, round	Oval leading; round enduring	Oval, emerald cut, round; pear declining
Least popular shape	Princess / square cuts	Not specified	Square cuts fading
Lab-grown share	60–70% of engagement ring sales	Not specified	Growing rapidly
Avg. carat (lab-grown)	3–5 carats	Not specified	Larger sizes trending
Avg. carat (natural)	2 carats; 3+ carats for premium buyers	Not specified	Larger naturals holding value
Top metal	Yellow gold gaining; white metals still present	Yellow gold 39%; white metal 48%	Yellow gold more than doubled in 5 years
Alternative stones	Sapphires, emeralds, rubies	Not specified	Colored stones for non-traditional buyers

One pattern emerges immediately: elongated shapes are winning across every data source, while the princess cut — which dominated the early 2000s — has effectively fallen off the priority list.

Which diamond shapes are selling best on 47th Street right now?

The oval cut is an elongated, elliptical brilliant-cut diamond that maximizes perceived size relative to carat weight. In 2026, it is the shape every 47th Street retailer interviewed by Rapaport mentioned first.

David Borochov, a salesperson at R&R Jewelers, reported seeing "a lot of ovals, rounds and recently, a lot of marquises," with pear shapes and emerald cuts also posting positive sales. Michael Haniken, managing director of Haniken Jewelers, echoed the same list — ovals, cushions, rounds, and marquises — and offered a pointed explanation: "The square stones are not selling as much as elongated because I think they see that shape on celebrities," he said.

John Magzalcioglu, president of Diamond Club International, added old mine cuts and elongated old mines to the mix — a notable signal that vintage and antique-inspired shapes are pulling real consumer dollars, not just editorial attention. He also flagged cushions as strong sellers.

The princess cut — a square brilliant cut with pointed corners, once the second-most-popular shape in the U.S. — is now the least sought-after shape according to Haniken. That represents a significant reversal from its peak in the 2000s and early 2010s.

Celebrity influence is the most cited factor driving the elongated preference. Haniken's observation about buyers seeing elongated shapes "on celebrities" maps directly onto a broader cultural shift that jewelry historian Marion Fasel described to National Jeweler: consumers today are taking strong visual cues from high-profile engagements and social media, consistently pointing toward ovals, marquises, and pear shapes rather than squares.

There is also a practical geometry argument. Elongated shapes create the illusion of a larger stone on the finger. When buyers are spending significant money — whether on a 2-carat natural or a 4-carat lab-grown — they want maximum visual impact. Ovals and marquises deliver that more effectively than rounds or squares of equivalent carat weight.

For guidance on oval proportions and settings, see our resource on 1.5 to 2 carat oval lab-grown diamond solitaire rings.

How dominant are lab-grown diamonds in engagement ring sales?

Lab-grown diamonds are produced in a controlled laboratory environment using either High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD) processes, creating stones chemically, physically, and optically identical to mined diamonds. On 47th Street in 2026, they are not a niche — they are the majority product in engagement ring sales.

Borochov at R&R Jewelers put his store's lab-grown share at 70% of engagement rings sold. Magzalcioglu at Diamond Club International estimated 60% lab, 40% natural. Haniken at Haniken Jewelers gave a slightly wider range — "anywhere from 25% to 50% lab" — while noting that natural demand persists and expressing hope for recovery.

The carat size differential between lab-grown and natural purchases is striking. Borochov reported that customers are buying 2-carat natural diamonds on average, while lab-grown buyers are going for 3 to 5 carats. Maya McMillan, sales manager at Eric Originals and Antiques, framed the dynamic clearly: "I see a lot of people that were going to get a 1- or 2-carat stone — they're opting for lab so they can get a bigger stone. Where 3-plus carats natural are still very strong for us."

This bifurcation matters for shoppers. Lab-grown diamonds are not simply replacing natural diamonds at the same size — they are enabling buyers to move up significantly in carat weight for the same or lower budget. A buyer who might have purchased a 1.5-carat natural is instead buying a 3.5-carat lab-grown oval or marquise, which also happens to be the trending shape. The two trends reinforce each other.

Haniken noted that smaller natural diamonds have "kind of died out" because for the same money, many customers want a larger lab-grown stone. Magzalcioglu observed the same pattern from a different angle: "People are looking for large-size natural if they are looking for natural. Smaller sizes are weaker, but the larger sizes are stronger."

The result is a polarized natural diamond market. Sub-2-carat naturals face the most competitive pressure from lab-grown alternatives, making them harder to resell and less distinctive to buyers who know the market. Stones above 3 carats retain demand from buyers who specifically want a mined diamond and are willing to pay the premium.

For durability insights, see our report on how lab-grown diamonds hold up under daily wear.

What carat sizes are buyers actually purchasing?

The average carat size data from 47th Street is more specific than most published surveys and tells a story about how the lab-grown market is reshaping expectations.

For natural diamonds, the working average on 47th Street is around 2 carats for a typical engagement ring purchase. The premium end of the natural market — 3 carats and above — remains solid. McMillan at Eric Originals and Antiques confirmed that "big natural diamonds are still selling really well," and Magzalcioglu noted that larger natural stones are seeing stronger demand than smaller ones.

For lab-grown diamonds, the average purchase sits at 3 to 5 carats. This is a meaningful jump from what the same buyer would have purchased in natural. The price differential between lab-grown and natural diamonds makes this possible: lab-grown diamonds typically retail at a fraction of the cost of comparable natural stones, allowing buyers to allocate the same budget toward a dramatically larger stone.

This size shift also interacts with shape preference. A 4-carat oval lab-grown diamond is visually spectacular on the hand — precisely the kind of statement piece that photographs well and reads as luxurious in person. The combination of large carat weight and elongated shape is not accidental; it reflects deliberate consumer choice driven by both aesthetics and value optimization.

One nuance worth noting: Magzalcioglu mentioned seeing demand for lower-color natural stones — J, K, L, M, and N colors — which suggests some buyers are trading color quality for size even within the natural diamond segment. This departure from the traditional emphasis on colorless or near-colorless grades reflects a broader willingness among today's buyers to prioritize size and shape over strict grading metrics.

Is yellow gold or white metal winning for engagement ring settings?

The metal question has a clear directional answer in 2026, even if white metals still hold a technical plurality. Yellow gold is a gold alloy with a warm, naturally yellow hue — typically 14k or 18k in fine jewelry — and it has been gaining ground in engagement rings for roughly a decade.

The Knot's 2026 Real Weddings Study, which surveyed more than 10,000 U.S. couples who married in 2025, found that 48% of engagement rings were white metal (35% white gold, 13% platinum), while 39% were yellow gold. Notably, the percentage of couples choosing yellow gold has more than doubled over the past five years.

Jewelry historian Marion Fasel, speaking to National Jeweler, traced the shift back roughly a decade and attributed it to celebrity influence and the broader popularity of yellow gold in non-bridal jewelry. Consumers want their engagement ring to coordinate with the rest of their jewelry wardrobe — and that wardrobe has been trending yellow for years.

On 47th Street, the metal conversation was less explicitly quantified, but the context is consistent. Retailers noted that gold remains in demand despite significant price increases in recent months. McMillan at Eric Originals and Antiques observed that buyers who were going to spend $20,000 on a gold necklace are still spending $30,000 on one — though smaller gold pieces have seen some softening. Borochov noted that as gold prices have come down slightly from their peak, buyers are jumping back in, treating gold jewelry as both wearable and investable.

Haniken suggested that the price spike has made the cost of goods higher, which gets passed to customers, and that some relief in gold prices would help the trade. Yellow gold settings are not immune to commodity price fluctuations, and the cost of an 18k yellow gold band has risen meaningfully alongside gold's broader price moves in 2025–2026.

For setting options in yellow gold, explore our guide to curved solitaire engagement rings.

Are colored gemstones becoming a real alternative to diamonds in engagement rings?

The short answer is yes — but with meaningful nuance about which stones are actually moving.

Sapphires, emeralds, and rubies are seeing strong interest on 47th Street, both for fashion jewelry and as alternative engagement ring center stones. Magzalcioglu at Diamond Club International noted that sapphires and emeralds are getting more attention than rubies right now, because good-quality rubies can be very expensive. "Some people are even choosing gemstones instead of diamonds for engagement rings," he said.

McMillan at Eric Originals and Antiques confirmed that sapphires, rubies, and emeralds are selling best in the colored stone category. Melisa Kulla, founder of MaMél Lux, reported that sapphires are the most popular gemstone at her store right now.

Sapphire is a corundum gemstone available in many colors — most famously blue — with a hardness of 9 on the Mohs scale, making it a practical choice for daily wear in an engagement ring. The sapphire's durability profile is second only to diamond among commonly used gemstones, which partly explains its appeal as a center stone alternative.

The colored stone trend is not entirely new — royal and celebrity sapphire engagement rings have been influencing consumer choices for decades — but the current moment feels different in scale. With lab-grown diamonds making large white stones accessible at lower price points, some buyers who might previously have chosen a colored stone for budget reasons are now choosing them for pure aesthetic preference. The colored stone buyer of 2026 is often making a deliberate style statement, not a budget compromise.

Ruby demand is real but constrained by price. A high-quality, non-heat-treated Burmese ruby commands prices that rival or exceed fine diamonds of comparable size, which limits the pool of buyers. Emeralds occupy a middle ground — they are more accessible than top rubies but require careful evaluation of clarity and treatment, since most commercial emeralds are oiled to improve appearance.

What does the princess cut's decline tell us about broader taste shifts?

The princess cut's fall from favor is one of the more telling data points in the 47th Street report. Haniken at Haniken Jewelers called it the least sought-after shape in the current market — a striking statement for a cut that was the most fashionable engagement ring shape from roughly 2000 to 2015.

The princess cut is a square or slightly rectangular brilliant-cut diamond with pointed corners and a high number of facets designed to maximize brilliance. Its appeal in the early 2000s was tied to the era's preference for geometric precision, white metals, and the idea that diamond quality — specifically cut and color — was the primary measure of a ring's value.

Today's buyers operate under a different set of priorities. Elongated shapes photograph better on social media. Yellow gold settings make the stone's color grade less critical. Lab-grown diamonds have shifted the conversation from quality metrics toward size and shape. Celebrity influence has consistently pointed toward ovals, marquises, and pear shapes rather than squares.

The old mine cut's resurgence is the inverse of the princess cut's decline. Old mine is an antique brilliant cut with a high crown, small table, large culet, and rounded square outline — the predecessor to the modern round brilliant. Its irregular, handcrafted character is the aesthetic opposite of the princess cut's geometric precision, and its popularity in 2026 reflects a broader consumer appetite for vintage character and individuality over standardized perfection.

Magzalcioglu's mention of "elongated old mines" is particularly interesting — it suggests that some buyers are seeking custom or modified antique cuts that combine the vintage warmth of an old mine with the elongated silhouette that is currently trending. This is a relatively specialized corner of the market, but it points toward growing sophistication among engagement ring buyers who want something genuinely distinctive.

How should a buyer use this data when shopping for an engagement ring?

The 47th Street data is useful not as a prescription but as a market map. Here is how to apply it practically:

If you want the most on-trend shape: An oval lab-grown diamond in a yellow gold solitaire setting is the clearest expression of where the market is in mid-2026. It combines the top-ranked shape, the dominant stone type, and the fastest-growing metal preference. Our guide to best lab-grown diamond engagement rings in India for 2026 includes oval options across multiple budgets.

If you want a larger stone for your budget: The 3–5 carat lab-grown average on 47th Street reflects a real value. A 3-carat lab-grown oval will cost significantly less than a 1.5-carat natural oval of comparable quality, and the size difference is dramatic. The tradeoff is that lab-grown diamonds do not hold resale value the way natural diamonds historically have — though natural diamond resale value is itself a complex and often overstated topic.

If you want a natural diamond: Focus on 2 carats and above if you want strong market support. Sub-2-carat naturals are facing the most competitive pressure from lab-grown alternatives, which means they may be harder to resell and may feel less distinctive to buyers who know the market. Larger naturals — 3 carats and up — retain genuine demand and a meaningful price premium over lab-grown equivalents.

If you want something non-traditional: Sapphires are the most accessible and durable colored stone alternative. Emeralds require more care and careful evaluation of treatment. Rubies at the quality level that makes them worth choosing over a diamond are expensive — budget accordingly.

If you are considering a marquise: This shape is having a genuine moment. The marquise cut is an elongated brilliant cut with pointed ends, originally commissioned by Louis XV of France to mimic the shape of a smile. It maximizes carat weight appearance better than almost any other shape, which makes it especially compelling in the current large-stone environment. Our roundup of best two-stone yellow and white pear diamond engagement rings covers related elongated shapes if you want to explore the pear alongside the marquise.

On setting style: The data does not give specific numbers on solitaire versus halo versus pavé, but the broader trend toward yellow gold and substantial settings suggests that buyers are moving away from the minimalist white-metal solitaire that dominated the 2010s. Chunky, design-forward settings — where the metal is as much a part of the aesthetic as the stone — are consistent with what retailers are describing. See our guide to U-prong and six-prong lab-grown diamond solitaire rings for options that balance classic structure with modern proportions.

What are the limitations of this data?

The 47th Street retailer survey is qualitative and geographically specific. It reflects the experience of a handful of jewelers in one district of one city — albeit an extraordinarily influential one. The percentages cited (60% lab, 70% lab, 25–50% lab) are retailer estimates, not audited sales data, and they vary enough across stores to suggest meaningful variation even within a single corridor.

The data also skews toward in-person, walk-in buyers in a high-density urban market. Online engagement ring buyers — who represent a growing share of total sales — may show different shape and size preferences, particularly as digital tools make it easier to evaluate stones without seeing them in person.

The Knot's 2026 Real Weddings Study provides a useful national counterpoint, but it surveys couples after the fact about rings they have already purchased, which introduces its own biases. Couples who participated in the survey may not be representative of all U.S. engagement ring buyers.

The directional consistency across sources is striking nonetheless. Ovals are up everywhere. Marquises are gaining. Princess cuts are down. Lab-grown is taking share. Yellow gold is growing. These are not artifacts of a single survey — they are a convergent signal from multiple independent data points.

The engagement ring market in 2026 is shaped by a buyer who wants maximum visual impact, is comfortable with lab-grown diamonds as a value tool, is drawn to elongated shapes for their photogenic quality and size illusion, and is increasingly open to yellow gold as a setting metal. That buyer is making choices that would have been considered unconventional a decade ago — and doing so with confidence.