Most trend articles blend two very different things: what couples are actually buying, and what designers hope they'll buy next. Both are worth knowing, but they aren't the same thing, and treating them as the same thing can lead a buyer to pay a premium for a style the market has not actually adopted.

This guide keeps them separate. Every figure below is attributed to its source, and any projection that is not supported by concrete sales data is identified as such.

2026 Engagement Ring Trends at a Glance

Sources: The Knot 2026 Real Weddings Study; Queensmith 2026 Trends Report; Austen & Blake 2026 sales data. Full attribution in each section below.

What Is the Most Popular Engagement Ring Shape in 2026?

The round brilliant is still the most popular engagement ring shape in 2026, but its lead has never been narrower. The Knot's 2026 Real Weddings Study, the largest US dataset of its kind, puts round at 26% of engagement rings and oval at 25%. That single percentage point is the entire gap between them.

You'll see articles claiming oval has already overtaken round, usually quoted as 32% versus 29%. That figure doesn't trace back to any named market-wide survey, and no current credible dataset supports it. The verified figures tell a more substantial story: oval has grown from roughly 2% of engagement rings in 2015 to 25% in 2026. That represents a decade-long shift in buyer preference rather than a short-term trend.

Why Oval Diamonds Took Over

Three main factors account for the increase in oval cut engagement rings, and they reinforce one another.

Oval faces up larger. An oval spreads its weight across a longer surface than a round of identical carat weight, so it reads bigger on the finger. When lab-grown pricing already allows buyers to consider a larger stone, a shape that adds further visible size represents meaningful value.

It flatters the hand. The elongated outline slims the finger. For many buyers comparing the two shapes in person, this proves to be the deciding factor rather than a secondary consideration.

Celebrity influence. The Knot attributes the oval surge directly to what it calls the "Hailey Bieber effect," and the timing supports that reading. A single widely photographed ring reset expectations for the entire category.

One consideration before purchasing: ovals can display a bowtie, a dark band across the center caused by light escaping through the middle of the stone. Every oval has one to some degree. In a well-cut stone it remains subtle enough to require deliberate searching, while in a poorly cut stone it becomes a permanent visual distraction. Always evaluate the individual stone rather than a representative photograph of the shape.

Is Marquise Trending in 2026?

Yes. Marquise rings are one of the more significant shape stories of 2026, with an important qualifier attached.

Marquise sits at roughly 8% of US engagement rings, which is a small share. What makes it notable is the growth rate. Austen & Blake reported marquise sales up 94% year over year, and Sotheby's jewelry director Frank Everett has described the shape as popular again after years of neglect, particularly in east-west settings.

Stated precisely: marquise is the fastest-growing fancy shape by percentage rather than the most popular shape by volume. Both measures are accurate, and the distinction is relevant when evaluating the shape as a purchase.

Why it's coming back:

Marquise delivers more face-up area per carat than almost any other shape. Where maximum visual size is a priority, the navette outline performs exceptionally well, which explains both its popularity in the 1970s and its return among size-conscious buyers today.

The shape also carries a genuine historical pedigree, which is significant in a year defined by heritage design. Marquise dates to 18th-century French court jewelry and reads as antique without requiring an antique stone.

The east-west setting has been central to its return. Positioned horizontally across the finger, a marquise takes on a distinctly contemporary character, and that reorientation accounts for much of the shape's renewed appeal.

A note on durability: marquise diamonds have two sharp points, and points are the most vulnerable area of any stone. This is a practical consideration rather than a theoretical one. V-prongs at both tips, a bezel, or a halo provide protection. A marquise set with standard round prongs at the points remains exposed, which is why protective setting work is standard practice for the shape.

Lab-Grown Diamonds Now Lead the Market

Lab-grown diamonds account for 61% of US engagement ring center stones in 2026, a 239% increase since 2020, per The Knot. Industry analyst Edahn Golan's data puts lab-grown engagement ring sales up 31% in 2025 while natural declined 4%.

The knock-on effects show up everywhere in the data:

Source: The Knot 2026 Real Weddings Study.

The pattern is notable. Lab-grown buyers are spending less on larger stones, and selecting oval over round while doing so. Lower carat costs have influenced not only what couples pay but what they select.

The blended market average across both categories is now roughly 1.9 carats at about $4,600. That average looks larger and cheaper than it did five years ago for one reason only: the majority of it is lab-grown.

Yellow Gold Continues to Rise

Yellow gold is the fastest-rising engagement ring metal in 2026 by a clear margin. The Knot puts it at 39% of US rings, a share that has more than doubled in five years.

White metals still hold a slim overall lead in the US at around 48% combined, counting white gold and platinum together, so this isn't a clean changing of the guard. It's a genuine three-way market where yellow gold moved from niche to mainstream in half a decade.

Why it happened: warm metal reads as vintage and heirloom without being either, which lines up with the Art Deco and antique revival driving the rest of the year. It also pairs naturally with the near-colorless lab-grown stones most couples are buying, since a bright white stone in warm gold has more contrast and more presence than the same stone in white gold.

Rose gold has cooled from its 2010s peak. It remains an attractive option, though it is no longer gaining share.

Settings Gaining Ground in 2026

Three setting movements show up in real sales data rather than lookbooks, and together they explain why modern engagement rings look so different from their 2020 equivalents.

Bezel and low-profile settings. A bezel wraps metal fully around the stone's girdle. It reads modern and architectural, and it's the most protective setting made, since the stone has no exposed edges to catch or chip. Designers have noted that the appeal is partly practical, as a bezel offers greater security for daily wear. That assessment aligns with what the setting is designed to do: bezel-set rings generally require less maintenance over time than settings with high, exposed prongs.

Hidden halos and hidden diamonds. Queensmith reports that hidden detailing, meaning hidden halos, bezel accents, and bridge stones, now appears in roughly one in four rings. The appeal lies in its discretion. From above the ring reads as a clean solitaire, while the profile view reveals a row of diamonds visible only at close range.

Vintage and Art Deco. This is the strongest signal in the available data. Queensmith recorded vintage-style ring searches up 700%, with 1920s-specific searches up 300%. Pinterest Predicts 2026 named Art Deco revival as a leading aesthetic driver for the year.

The catalyst can be dated precisely. When Taylor Swift's engagement ring was revealed in August 2025, an elongated antique cushion in a warm gold setting, searches for old mine cut diamonds spiked by nearly 1,000% within hours according to M.S. Rau's jewelry specialists. Frank Everett at Sotheby's has since predicted 2026 as the year of the antique cushion-cut engagement ring.

Meanwhile the plain solitaire is slipping, from 47% of sales to 40.3% in Queensmith's data, while diamond-set bands climbed from 22% to 34%. Couples continue to prioritize a clear center stone, while increasingly seeking additional detail surrounding it.

Emerging Styles in 2026

Several designs feature prominently in 2026 trend coverage while remaining early in terms of measured sales. Understanding where each one currently sits is useful when comparing options and evaluating price.

Colored center diamonds. Yellow, pink, and blue center stones are widely anticipated for 2026. Laboratory growing has made fancy colors considerably more accessible than they were even five years ago, expanding what is realistically available to most buyers. Adoption remains early, with 98% of lab-grown diamonds sold in colorless D grade. For a buyer drawn to color, this is a distinctive choice with more selection available than at any point previously.

Toi et moi and east-west settings. Both appear consistently across designer collections this year, and the east-west orientation has become closely associated with marquise and other elongated shapes. Search interest in toi et moi has grown approximately 40%, compared with 700% growth for vintage styles. Both designs have a dedicated following, though on a smaller scale than the year's leading trends.

Bands without a center stone. Featured in a number of designer forecasts for 2026. Market share data for the category is not currently available.

Each of these is a legitimate direction, and a buyer choosing one is selecting something ahead of wider adoption. When comparing prices, it is worth confirming that a quote reflects the craftsmanship and materials involved rather than an assumed scarcity premium.

What This Means If You're Shopping Now

The following applies the data above to practical decisions for anyone currently shopping the trending engagement rings of 2026.

If you want the shape that looks largest for the money, oval and marquise both deliver more face-up spread per carat than round. Marquise offers the greatest spread, while oval offers nearly as much without vulnerable points.

If you're choosing between round and oval, know that round holds its resale and recut value better simply because demand is deepest and most stable. Oval is not a risky choice at 25% market share, but round remains the most liquid shape in the market.

If you're buying a pointed shape such as marquise or pear, budget for protective setting work. V-prongs or a bezel at the tips serve a structural purpose rather than a decorative one.

If you want vintage, decide whether you want an actual antique stone or an antique-inspired one. Old mine and old European cuts have a soft, flickering light pattern that modern cutting doesn't reproduce. Newly cut "antique-style" stones cost considerably less and present a cleaner appearance, which may be desirable or not depending on the intended effect.

If budget is a primary consideration, the lab-grown data is clear. A 2-carat lab-grown oval in yellow gold with a hidden halo falls well below the average natural ring cost while aligning with four separate 2026 trends.

Barkev's has been designing and handcrafting engagement rings in Los Angeles since 1981, long enough to have made rings through the marquise boom of the 1980s, its disappearance, and now its return. Explore the full engagement ring collection to see these shapes and settings in finished designs.

More Diamond Guides

If you're weighing what these trends actually cost, these guides break down pricing the same way this one breaks down trends:

• Diamond Price Guide: How Much Does a Diamond Cost? covers natural and lab-grown prices at every carat weight, how the 4Cs move price, and shape-based savings.
• Blue Diamond Price Guide covers treated, natural Fancy Blue, and lab-grown blue diamond pricing.
• Black Diamond Price Guide covers what black diamonds cost and how quality is judged when traditional grading doesn't apply.

2026 Engagement Ring Trends FAQs