The engagement ring market is evolving rapidly, reflecting broader cultural and design shifts in the UK. Where once the classic round brilliant diamond reigned supreme, today’s couples are exploring unique shapes, alternative settings and gemstone cuts that better reflect individuality and personality.
By 2026, this movement toward personal expression in jewellery is expected to deepen. UK jewellers, from Hatton Garden boutiques to major retailers such as Laings and Boodles, have reported a steady increase in demand for distinctive shapes like elongated cushions, ovals, pears, emerald cuts and antique-style old mines.
A report by Vogue UK notes that non-traditional shapes are now outpacing round cuts for the first time in over a decade, fuelled by celebrity influences and social media trends. This article explores the gem cuts poised to dominate engagement ring styles in 2026, the cultural and technical reasons behind their rise, and how to choose the right one for your lifestyle and aesthetic.
The Evolution of Gem Cuts in Modern Jewellery
Diamonds and gemstones have been shaped and polished for thousands of years, but the modern understanding of a “cut” emerged during the Renaissance. Advances in diamond cutting transformed gems from rough crystals into objects of controlled light and symmetry.
By the 20th century, round brilliant cuts, with their 58 precise facets, became the universal standard for engagement rings. Yet, as The Guardian observes, a new generation of buyers now views the round brilliant as predictable. The desire for self-expression, sustainability and personal connection is pushing couples toward shapes that tell a different story.
From an aesthetic perspective, these alternative cuts not only showcase individuality but also influence how a ring looks on the hand. Shape affects perceived size, sparkle, and even personality association – traits increasingly important to modern consumers.
The Oval Cut: The Timeless Favourite Reinvented
Among all trending shapes, the oval cut stands out as the most requested in the UK for 2025–26. Jewellers such as Lily Arkwright report a continued rise in searches for oval moissanite and diamond engagement rings.
The oval’s appeal lies in its elegance and elongating effect on the finger. Its elongated proportions create the illusion of a larger stone without increasing carat weight. A well-cut oval diamond exhibits the same brilliance as a round but feels softer and more contemporary.
Technically, the shape maximises surface area, meaning a one-carat oval appears larger than a one-carat round. However, buyers must watch for the “bow-tie effect,” a shadow across the centre caused by misaligned facets. Expert UK jewellers recommend viewing ovals in natural daylight to assess sparkle evenly.
Celebrities have amplified this trend, with engagement rings worn by Hailey Bieber and Kourtney Kardashian inspiring British brides to seek sleek oval solitaires or halo settings. The style is expected to remain a major trend into 2026, particularly in yellow and rose gold mountings.
Pear Cut: Romantic and Unapologetically Bold
The pear cut, sometimes called the teardrop, combines the round and marquise shapes in a single design. Its tapered tip creates a striking silhouette that feels both vintage and fashion-forward.
The Gemological Institute of America (GIA) notes that pear-shaped diamonds require precise symmetry to ensure balanced brilliance. In the UK, jewellers are experimenting with east–west orientations (set horizontally) and bezel settings that modernise this romantic cut.
Worn point-up, the pear cut elongates the finger, while a point-down orientation delivers a softer, more traditional appearance. The versatility of the shape allows it to fit seamlessly within both minimalist and ornate ring styles.
The pear cut has seen renewed interest following high-profile appearances on social media. UK couples are embracing its dramatic flair as an alternative to more symmetrical shapes.
Elongated Cushion Cuts: The Vintage Star Returns
Few cuts capture the romance of old-world glamour like the elongated cushion cut. Defined by rounded corners and larger facets, this style blends vintage charm with modern proportions.
Originally popular in the 18th and 19th centuries, cushion cuts were re-engineered in the past decade to enhance brilliance and length. The elongated cushion offers the best of both worlds – soft edges and a flattering shape that sits beautifully on the hand.
A 2025 feature from Page Six revealed that interest in antique cushion cuts soared following reports that Taylor Swift’s engagement ring featured a similar design. UK jewellers are now seeing the same pattern, with rising demand for both natural and lab-grown cushion cuts in bespoke rings.
The cushion’s appeal lies in its timelessness. It diffuses light in a gentle, candlelit glow, making it ideal for those who value understated luxury.
Emerald and Asscher Cuts: The Architectural Revival
As engagement rings become more design-driven, step cuts such as emerald and Asscher shapes are gaining traction. Rather than relying on sparkle, these cuts emphasise clarity, symmetry and depth.
The emerald cut, with its elongated rectangular form and parallel facets, creates a sophisticated “hall of mirrors” effect. Its geometric lines convey quiet confidence. The Asscher cut, a square variation developed in early 1900s Amsterdam, offers a similar architectural beauty with a deeper pavilion.
These cuts are frequently featured in platinum or white gold settings that complement their crisp geometry. The BBC highlights that minimalism in design remains a dominant theme for 2026, aligning perfectly with the understated elegance of step-cut diamonds.
Buyers choosing emerald or Asscher shapes should prioritise clarity over colour, as their open facets make inclusions more visible.
Marquise Cuts: The Comeback of a Classic
The marquise cut, characterised by its elongated body and pointed ends, is making a surprising return. Once considered old-fashioned, it is now being reimagined by designers in sleek, contemporary settings.
Named after the Marquise de Pompadour, this cut was originally designed to resemble a woman’s smile. Its long, narrow form maximises finger coverage, making it appear larger than its carat weight.
UK jewellers have reported a rise in asymmetric marquise settings for 2026, often paired with accent stones like tapered baguettes. When set horizontally, the marquise cut becomes unexpectedly modern, appealing to fashion-conscious couples.
Radiant and Princess Cuts: For Maximum Brilliance
While rounds and ovals dominate for light performance, radiant and princess cuts offer bold sparkle in more angular forms. The radiant combines the geometry of the emerald with the brilliance of a round, making it one of the most versatile shapes available.
The princess cut, square and fiery, remains popular among those who prefer a contemporary, high-impact look. Both styles lend themselves to geometric settings that complement modern architecture and fashion design.
According to Vogue UK, these cuts resonate with younger buyers seeking sharp, statement-making designs that still feel timeless.
Heart Cuts and Other Artistic Shapes
For couples who value symbolism, the heart-shaped diamond remains the ultimate romantic gesture. Although technically demanding to cut, when executed properly it creates exceptional light dispersion.
Other creative shapes emerging for 2026 include hexagonal, trillion, and shield cuts. These unconventional silhouettes are often paired with alternative gemstones such as sapphires, moissanite and salt-and-pepper diamonds.
Social media has accelerated the trend, with platforms like Pinterest showcasing non-traditional designs. As individuality becomes the new luxury, such rare shapes are expected to flourish.
The Role of Colour and Setting in the Shape Renaissance
Shape rarely exists in isolation. In the UK, the resurgence of yellow gold and mixed metals has reshaped how gemstone cuts are presented. Warm settings amplify the glow of elongated or antique shapes, while platinum enhances the clarity of step cuts.
Coloured gemstones further expand creative possibilities. Engagement rings featuring teal sapphires, champagne diamonds, or green emerald cuts allow shape and colour to work together to create visual distinction.
As The Guardian reports, this interplay between material, colour and form defines a new era of “intelligent luxury,” where design intention matters more than pure size.
Personalisation and Custom Design
One of the defining traits of 2026’s engagement ring trends is the move toward personalisation. Many UK jewellers now offer CAD design consultations, allowing buyers to visualise different shapes on-screen before production.
Whether choosing a pear-cut solitaire or an emerald halo, customisation gives couples the freedom to merge personal style with craftsmanship. The rise of lab-grown diamonds and traceable supply chains has also made bespoke rings more accessible than ever.
According to Lily Arkwright, bespoke commissions now account for nearly half of their UK engagement ring sales.
Expert Advice: Choosing the Right Shape for You
When selecting a gemstone shape, consider the following:
- Finger shape and size – elongated cuts (oval, pear, marquise) lengthen shorter fingers, while round and Asscher cuts suit longer hands.
- Lifestyle – if you lead an active lifestyle, avoid sharp points or fragile corners; opt for rounded shapes with protective settings.
- Budget – elongated cuts typically appear larger for the same carat weight, offering excellent value.
- Maintenance – step cuts require frequent cleaning to maintain brilliance due to their open facets.
Trying on different shapes in person remains the best way to discover what flatters you most.
The Future of Engagement Ring Design in the UK
As we approach 2026, UK engagement ring design is becoming more diverse and expressive. The focus is shifting away from uniformity and toward individuality, creativity and craftsmanship.
Technological innovation, including 3D printing and precision laser cutting, is allowing jewellers to push boundaries with new shapes and settings. Meanwhile, the rise of ethical sourcing and lab-grown stones supports this creative freedom by making bespoke options more affordable.
Ultimately, the engagement ring shapes dominating 2026 reflect more than aesthetics. They symbolise a generation’s desire to express identity and conscience through design.
Conclusion
From the soft glow of an elongated cushion to the architectural beauty of an emerald cut, 2026 is set to be the year of shape diversity in UK engagement rings. Buyers are embracing individuality over tradition, choosing rings that feel personal, modern and meaningful.
As Vogue UK summarises, the future of engagement jewellery lies not in conformity but in creativity. Whether you choose an oval, pear, marquise or custom-cut gemstone, what matters most is that it reflects your story – timeless, personal and brilliant.