Oval Engagement Rings
Elongated brilliance that wears larger than its weight.
The oval is a round brilliant stretched — the same brilliant faceting and fire, spread into an elegant elongated silhouette. It has been the fastest-rising shape of the last decade, and the appeal is easy to see: it sparkles almost like a round, looks larger for its carat weight, and lengthens the finger beautifully.
This guide covers why ovals wear large, the length-to-width ratio that defines the look, the bowtie effect to watch for, and the settings that suit an oval best.
Why ovals wear larger than their weight
Because an oval spreads its weight across a longer surface than a round, a well-cut oval looks bigger face-up — often by the equivalent of a quarter-carat or more. Add Montare’s 3-carat floor and the result is real, head-turning presence on the hand.
Length-to-width ratio: the spec that defines the look
An oval’s personality is set by its length-to-width ratio — purely an aesthetic choice, so pick the silhouette you love:
| Ratio | Look |
|---|---|
| 1.30–1.35 | Rounder, fuller |
| 1.35–1.45 | Classic, balanced (most popular) |
| 1.45–1.55 | Elongated, elegant |
What about the bowtie?
Every oval has a faint “bowtie” — a shadow across the centre where light isn’t fully returned. Skilled cutting minimises it; a poor cut leaves a heavy dark band. Because our ovals are cut to Triple Excellent with ideal proportions, the bowtie stays faint and the stone stays bright corner to corner.
Best settings for an oval
An oval is wonderfully versatile. A solitaire lets the silhouette shine; a hidden halo adds sparkle and even more apparent size; a pavé band frames it in brilliance; and an east-west setting turns it sideways for a modern statement. See how it sits next to the other shapes in our diamond shapes guide, or preview it to scale in the ring builder.
- 3 carat minimum centre stone
- D–E colour & VVS1–VVS2 clarity
- Triple Excellent cut with ideal table & depth
- Lab-grown & IGI certified
Design your ring
Build it in our live configurator — shape, carat, metal and setting, all to scale — or book a complimentary consultation with a Montare specialist. No obligation, same-day response.
Build your ring →Book a consultation →Oval engagement ring FAQs
Do oval diamonds look bigger than round?
Yes. An oval spreads its carat weight over a longer surface, so a well-cut oval typically looks larger face-up than a round of the same weight, and it lengthens the finger.
What is the best length-to-width ratio for an oval?
Around 1.35 to 1.50 is the classic, balanced range most people prefer. Lower ratios look rounder and fuller; higher ratios look more dramatically elongated. It’s a personal-taste choice.
What is the bowtie effect on an oval?
A bowtie is a faint dark shadow across the centre of elongated brilliant cuts. Precise cutting minimises it. Montare ovals are Triple Excellent with ideal proportions, keeping the bowtie faint and the stone bright.
Are oval diamonds good value?
Yes. They cost a little less per carat than rounds, wear larger for the weight, and with lab-grown stones a 3-carat oval is far more attainable than its natural equivalent.
At three carats
See the face-up size, certification, and factory-direct pricing for a 3 carat oval lab-grown diamond — the Montare floor: VVS, D/E, Triple Excellent, IGI certified.