Engagement Rings UK Editorial
Contributing Editor
Oval Engagement Rings
The fastest-growing diamond shape in the UK. Looks larger, costs less per carat, and flatters every finger.
Why oval diamonds are everywhere
An oval diamond has roughly 10% more face-up area than a round diamond of the same carat weight. That means a 0.9ct oval can look like a 1ct round — at a lower price. The elongated shape also creates an optical illusion that makes the finger appear longer and slimmer.
The cut quality matters more with ovals than with rounds. Round brilliants have standardised ideal proportions; ovals don’t. There’s no universal ‘ideal cut’ grade for ovals, which means you need to assess each stone individually — or work with a jeweller who genuinely knows what they’re looking at.
The key measurements to care about are the length-to-width ratio (most people prefer 1.35–1.50:1) and the bow-tie effect (a dark shadow across the centre). Both are impossible to judge from a certificate alone — you need to see the stone or a high-quality video.
Best settings
Oval diamonds are versatile — they look stunning in almost any setting. The right setting enhances the elongated shape and protects the pointed ends.
Classic 4-prong solitaire
Classic & cleanThe most popular oval setting. Four prongs hold the stone securely while maximising the diamond’s face-up visibility. Clean, timeless, and lets the oval shape do all the talking.
Best for: Timeless elegance, maximum diamond visibility
Cathedral pavé
Elegant & refinedArched shoulders rise to meet the oval diamond, with small diamonds set along the band. Adds height and sparkle while keeping the focus on the centre stone. A refined, elevated look.
Best for: Extra sparkle, structured profile
Hidden halo
Contemporary & surprisingA ring of tiny diamonds sits beneath the oval, invisible from above but adding a halo of sparkle from the side. The best of both worlds — clean face-up with hidden brilliance.
Best for: Modern, subtle sparkle lovers
Split shank
Bold & distinctiveThe band divides into two as it approaches the oval diamond, creating a dramatic, open silhouette. Makes the centre stone appear larger and adds visual interest from every angle.
Best for: Statement style, larger-looking stone
UK prices in 2026
Oval diamonds typically cost 15\u201325% less than round brilliants of the same quality. Combined with their larger face-up appearance, they\u2019re arguably the best value shape on the market right now.
| Specification | Natural | Lab-Grown |
|---|---|---|
| 0.7ct oval, 4-prong solitaire, 18ct white gold | £1,600–£3,200 | £800–£1,600 |
| 1ct oval, 4-prong solitaire, 18ct white gold | £3,000–£5,500 | £1,400–£2,800 |
| 1ct oval, cathedral solitaire, platinum | £3,500–£6,500 | £1,700–£3,200 |
| 1.5ct oval, hidden halo, platinum | £5,500–£10,000 | £2,500–£4,500 |
| 2ct oval, 4-prong solitaire, platinum | £8,000–£18,000 | £3,500–£6,000 |
Insider tips
Always check the bow-tie before buying. A faint bow-tie is normal and adds character. A strong, dark bow-tie means the stone is poorly proportioned. Never buy an oval diamond sight unseen from a certificate alone — the bow-tie isn’t graded on GIA or IGI reports.
The length-to-width ratio is personal preference, but 1.40:1 is the crowd favourite. If you’re buying without your partner’s input, 1.35–1.45:1 is the safest range.
Ovals show colour more than rounds, especially at the pointed ends. If you’re choosing a white gold or platinum setting, consider going one colour grade higher than you would for a round (e.g. E–F instead of G–H).
A 4-prong setting with prongs at the ends protects the pointed tips — these are the most vulnerable part of an oval diamond. Some jewellers use V-prongs at the tips and round prongs on the sides, which is the ideal configuration.
Where to buy in the UK
Queensmith
Their Hatton Garden workshop hand-selects every oval diamond. They’ll show you multiple stones side-by-side so you can compare bow-ties and proportions in person. One of the few UK jewellers that truly understands oval cut quality.
Visit Queensmith →Taylor & Hart
Bespoke oval engagement rings with a strong design process. Their online tool shows high-resolution 360° videos of each diamond, which is essential for checking bow-tie. London and Manchester showrooms available.
Visit Taylor & Hart →Brilliant Earth
Large online inventory of oval diamonds with 360° videos for each stone. Good for comparing many options quickly. They ship to the UK with duties included and offer free returns within 30 days.
Visit Brilliant Earth →Frequently asked questions
Do oval diamonds look bigger than round diamonds?
What is the bow-tie effect in oval diamonds?
What is the best length-to-width ratio for an oval diamond?
Are oval engagement rings a trend or here to stay?
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