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Oval vs round: which diamond should you choose?

They are the two most popular shapes, and both are brilliant cuts. The round gives the most sparkle and the easiest choice; the oval looks bigger on the finger for the same weight.

The short answer: choose a round for maximum sparkle and a cut grade you can rely on. Choose an oval for more length on the finger and a softer, modern look, and check its bow tie on video.

See both in stock Compare all shapes

01 · Size

Does an oval look bigger than a round?

Yes, mostly because it is longer. At the same weight, a typical oval is about 22% longer than a round is wide, but its face-up area is only about 5% larger. The extra length is what the eye reads as “bigger”, especially on a slim finger.

  • Oval 1 ct
    7.5–8.2 × 5.3–5.8 mm
  • Round 1 ct
    6.4–6.5 mm
  • Oval 2 ct
    9.4–10.3 × 6.7–7.3 mm
  • Round 2 ct
    8.1–8.2 mm
Carat Oval, length × width Round, diameter Oval length vs round Oval face-up area
0.5 6.0–6.5 × 4.2–4.6 mm 5.1–5.2 mm +22% +5%
1 7.5–8.2 × 5.3–5.8 mm 6.4–6.5 mm +22% +5%
1.5 8.6–9.4 × 6.1–6.6 mm 7.3–7.4 mm +22% +5%
2 9.4–10.3 × 6.7–7.3 mm 8.1–8.2 mm +22% +5%
3 10.8–11.8 × 7.6–8.4 mm 9.2–9.4 mm +22% +5%

Drawn at actual size at 100% zoom. Typical sizes; real stones vary with their depth, so always check the certificate. Percentages compare typical stones of the same weight.

02 · Sparkle and cut

Which sparkles more?

The round, by a little. Its facets are arranged to return the most light of any shape, and it is the only shape that gets an overall cut grade on the certificate: ask for the top grade and you know it performs.

The oval uses the same kind of facets, stretched, so it is still very lively. But it has no cut grade, and most ovals show a bow tie: a darker band across the middle. A light one that moves is fine; a broad, dark one is not. That is why we check every oval on its 360° video.

Oval: a light bow tie
Round: even sparkle

03 · On the finger

How they look on the hand

Set north–south, an oval draws the eye along the finger and makes it look longer and slimmer. A round is symmetrical and classic: it suits every hand and every setting, and never dates.

Neither has points or corners, so both are good for active hands. Four or six prongs hold either well.

See any shape on your ring size in the shape guide →

Oval 1 ct · size 6
Round 1 ct · size 6

Drawn at actual size on a size 6 finger.

04 · Price

Is an oval cheaper than a round?

For natural diamonds, often yes: cutting a round wastes the most rough, and it is the shape most people want, so a natural oval usually costs less than a round of the same weight and quality.

For lab-grown diamonds there is no fixed rule. The difference changes with size and moves over time, so compare live prices at the weight you want.

Compare live prices, 1 carat

05 · Which one is for you

Oval or round: how to decide

Choose an oval if…

  • you want the most length on the finger for your budget
  • you like a longer, slimmer look on the hand
  • you want something a little less expected
  • you are happy to judge the bow tie on video (we check it for you)
Read the oval diamond guide →

Choose a round if…

  • sparkle matters more to you than size
  • you want a cut grade to make the choice simple
  • you want a look that never dates
  • you are choosing a halo or a three-stone setting
Read the round diamond guide →

06 · In stock now

Ovals and rounds, side by side

Oval diamonds, 1–1.5 ct

Oval

Lab-grown · IGI

CaratColourClarityScore
1.00DVVS198
CA$540 Ratio 1.40

Returnable – 5 days

View details →

Oval

Lab-grown · IGI

CaratColourClarityScore
1.02DVVS297
CA$520 Ratio 1.39

Returnable – 5 days

View details →

Oval

Lab-grown · IGI

CaratColourClarityScore
1.04DVVS297
CA$530 Ratio 1.46

Returnable – 5 days

View details →

See all oval diamonds →

Round diamonds, 1–1.5 ct

Round

Lab-grown · IGI

CaratColourClarityScore
1.07HVVS194
CA$440 Ratio 1.00

Returnable – 5 days

View details →

Round

Lab-grown · IGI

CaratColourClarityScore
1.07HVVS194
CA$440 Ratio 0.99

Returnable – 5 days

View details →

Round

Lab-grown · IGI

CaratColourClarityScore
1.08HVVS194
CA$450 Ratio 1.00

Returnable – 5 days

View details →

See all round diamonds →

07 · Questions

Oval vs round questions

Does an oval diamond look bigger than a round?

Yes. At the same weight a typical oval is about 22% longer than a round is wide, with about 5% more face-up area. The extra length is what makes it look bigger on the finger.

Which sparkles more, an oval or a round?

The round, slightly: it returns the most light of any shape. An oval is still very lively, but it can show a bow tie, so judge it on video.

Is an oval cheaper than a round diamond?

Often, for natural diamonds, because cutting a round wastes more rough. For lab-grown diamonds it depends on the size. Compare live prices at the weight you want.

Which is more durable, an oval or a round?

Both are equally sturdy: neither has points or sharp corners. Four or six prongs, or a bezel, hold either well.

Is an oval or a round better for short fingers?

An oval set north–south makes the finger look longer. A round suits every hand. It is a styling effect, not a rule: choose the one you love.