The teardrop,sized properly.Carat to millimetres.
Half oval, half marquise, the pear is measured length × width in millimetres. This chart converts each carat weight to real dimensions from our own diamond measurements.
Why carat isn't the same as size.
Carat measures weight, not dimensions. The size you actually see is the stone's measurement in millimetres — and two diamonds of the same carat can look different sizes depending on how they are cut.
A shallow, well-spread stone shows more face-up area; a deep-cut one hides weight underneath. So when comparing diamonds, compare the millimetre dimensions, not just the carat weight.
"The number that decides how big a diamond looks isn't the carat — it's the measurement in millimetres."
The chart below gives you both, so you can picture the real size before you choose.
What makes the pear special.
The elongated teardrop spreads its weight, so a pear appears larger on the finger than a round of the same carat.
The pointed tip is the most vulnerable part — a V-prong shields it from chipping and keeps the outline crisp.
Like the oval and marquise, a pear can show a bow-tie across the centre. Good symmetry keeps it faint.
Symmetry through the long axis is key — the point should line up with the centre of the rounded end.
What each size actually looks like.
These pear shapes are drawn to relative scale from real face-up dimensions. Notice how gently size grows — a 2 carat is larger than a 1 carat, but not twice the size.
Drawn to relative scale for a well-cut pear. On-screen sizes are proportional, not literal millimetres — see the chart below for exact dimensions.
Pear Cut carat to millimetre chart.
Approximate face-up dimensions for a well-cut pear. Sizes marked "Measured" reflect our own diamond measurements; larger sizes are extrapolated to the same proportions. Individual stones vary with cut and depth.
| Carat Weight | Size (mm) | L/W Ratio | Source |
|---|---|---|---|
| 0.25 ct | 5.3 × 3.4 mm | 1.56 | Measured |
| 0.50 ct | 6.7 × 4.3 mm | 1.56 | Measured |
| 0.75 ct | 7.6 × 4.9 mm | 1.56 | Measured |
| 1.00 ct | 8.4 × 5.4 mm | 1.56 | Measured |
| 1.25 ct | 9.0 × 5.8 mm | 1.56 | Approx. |
| 1.50 ct | 9.6 × 6.2 mm | 1.56 | Approx. |
| 1.75 ct | 10.1 × 6.5 mm | 1.56 | Approx. |
| 2.00 ct | 10.6 × 6.8 mm | 1.56 | Approx. |
| 2.50 ct | 11.4 × 7.3 mm | 1.56 | Approx. |
| 3.00 ct | 12.1 × 7.8 mm | 1.56 | Approx. |
| 4.00 ct | 13.3 × 8.6 mm | 1.56 | Approx. |
| 5.00 ct | 14.4 × 9.2 mm | 1.56 | Approx. |
Choosing the right proportions.
Two pears of the same carat can look different depending on their length-to-width ratio. It comes down to taste — here are the main looks.
A fuller, softer teardrop — plump and classic, with a gentle point.
The balanced, most sought-after pear silhouette — elegant and versatile.
A longer, more dramatic teardrop with a pronounced finger-lengthening effect.
Four things worth knowing first.
Beyond size, a few pear-specific pointers help you choose a stone that looks its best.
A V-shaped prong at the point protects the most fragile part of the stone and defines the teardrop outline neatly.
Warmth tends to concentrate at the tip. In white metal, favour a slightly higher colour grade; warmer metals hide it well.
A well-aligned point and even shoulders matter more than on a round — they decide whether the teardrop looks balanced.
Brilliant faceting masks small inclusions, so an eye-clean VS stone offers excellent value.
How the setting changes the size you see.
The same stone can look bigger or smaller depending on how it is set. If maximising visual size matters, the setting is as important as the carat weight.
A solitaire shows the true size; a halo frames it to read larger; a three-stone setting stretches the look along the finger. Choosing well means you can often get the presence you want without moving up in carat.
Browse pear diamonds by size.
Found your size? Go straight to the collection — every stone IGI certified and lab grown.
Pear size questions, answered.
The questions we hear most about pear diamond sizing. If yours isn't here, just ask.
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Everything you need to choose with confidence.
Find your perfect pear.
Every pear is IGI certified and made to order, in the exact carat, ratio, and setting you choose. Not sure which size suits the hand? Tell us and we'll guide you.