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Fashion-led, celebrity-inspired, and ethically made: your 2025 guide to the diamond cuts everyone’s talking about.
Why diamond shapes are so trend-led in 2025
In 2025, diamond jewellery trends are moving as quickly as fashion drops. Viral moments, celebrity engagements and vintage revivals are steering searches towards old mine cut diamonds, pear-shaped engagement rings, and statement silhouettes like marquise and emerald. If you’re browsing lab-grown diamonds UK or planning a proposal, this is your concise style guide from Ahimsa London — the ethical choice for stunning, trend-forward pieces.
Old Mine Cut – The vintage icon making a comeback
Why it’s trending
The old mine cut is the surprise star of 2025. With chunky facets, a softly squared outline and romance-soaked antique vibes, it’s the ring that says “unique” without trying. A wave of celebrity inspiration has pushed this historic cut firmly into the modern spotlight.
Fashion mood
Think heirloom energy with editorial edge — perfect with yellow gold settings, milgrain detailing, and hand-finished baskets.
Pear Shape – The “It-girl” ring of 2025
Why it’s trending
The pear-shaped engagement ring is everywhere: sleek, elongated and effortlessly glamorous. It visually lengthens the finger and photographs beautifully — no wonder it’s topping saved boards and wishlists.
Fashion mood
Modern couture meets classic romance. Try a slim pavé band, high polish yellow gold, or a delicate halo for red-carpet sparkle.
Oval – Timeless, face-flattering sparkle
Why it’s trending
The oval diamond remains a staple of engagement ring styles 2025: bright, brilliant and slightly larger-looking for its carat weight. It’s the refined choice for fashion-minded clients who want maximum shine with everyday elegance.
Fashion mood
Minimalist luxe. Pair with a knife-edge solitaire, bezel setting for sleek lines, or a hidden halo for discreet drama.
Marquise – Bold retro revival
Why it’s trending
Marquise diamonds are back with a bang: retro, confident and unapologetically fashion-forward. The elongated, pointed silhouette feels couture and instantly statement-making — ideal if you love editorial styling.
Fashion mood
High-glam with attitude. Channel vintage runway energy with a north-south solitaire or stacked bands for sculptural impact.
Emerald – Luxury minimalism
Why it’s trending
The emerald cut diamond is the quiet luxury favourite: sleek step-cuts, mirror-like flashes and architectural lines. It’s the minimalist’s answer to high fashion — a sophisticated, camera-ready finish that never shouts.
Fashion mood
Gallery-worthy simplicity. A pared-back cathedral solitaire or bezel is effortlessly modern; baguette shoulders add editorial symmetry.
How to choose your diamond shape
From old mine cut icons to pear, oval, marquise and emerald, Ahimsa London crafts every look in ethical, lab-grown diamonds with UK-made settings. Book a one-to-one consultation to compare shapes, carat sizes and create a piece that’s runway-ready yet forever wearable.
- Shop the trend: Pear-shaped engagement rings
- Explore: Vintage-inspired old mine cut designs
- Discover: Emerald and marquise statement solitaires
- Why Ahimsa: Sustainable, Alway Ethically Sourced • Fair pricing • Bespoke design
