How big is a 5 carat pear shaped diamond?

By HeyGema™ · Updated

In short

A 5 carat pear shaped diamond measures about 14.5 x 9.4 mm. It faces up 3% smaller than a round diamond of the same weight. On a size 6 finger it covers 57% of the width. For the same weight, a round diamond is 11.0 mm.

Carat to mm calculator

About 14.5 x 9.4 mm

An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.

5 ct pear
14.5 x 9.4 mm
5 ct round
11.0 mm
Side by side
5 ct round inside 5 ct pear
A 5 carat pear diamond beside a 5 carat round, to the same scale.

5 carat pear diamond size

A well-cut 5 carat pear shaped diamond measures about 14.5 x 9.4 mm (0.57 x 0.37 inches) at a length-to-width ratio of 1.55:1. It faces up 3% smaller than a round diamond of the same weight. It weighs 1.00 grams.

5 carat pear size by length-to-width ratio

The same weight can be long and narrow or short and wide. These are 5 carat sizes at each ratio. A longer ratio runs the stone along the finger and makes it look slimmer. The face-up area stays almost the same.

1.40:1
Length x width: 13.8 x 9.9 mm
Width on the finger: 60% of a size 6 finger
1.50:1
Length x width: 14.3 x 9.5 mm
Width on the finger: 58% of a size 6 finger
1.55:1
Length x width: 14.5 x 9.4 mm
Width on the finger: 57% of a size 6 finger
1.60:1
Length x width: 14.8 x 9.2 mm
Width on the finger: 56% of a size 6 finger
1.70:1
Length x width: 15.2 x 9.0 mm
Width on the finger: 54% of a size 6 finger

5 carat pear on a finger

9.4 mm
9.4 mm stone on a 16.5 mm finger: it covers 57% of the widthA 5 carat pear diamond on a size 6 finger.
4
Finger width: 14.9 mm
Pear covers: 63%
5
Finger width: 15.7 mm
Pear covers: 60%
6
Finger width: 16.5 mm
Pear covers: 57%
7
Finger width: 17.3 mm
Pear covers: 54%
8
Finger width: 18.1 mm
Pear covers: 52%
9
Finger width: 18.9 mm
Pear covers: 50%

Pear sizes near 5 carat

3.5 carat
Length x width: 12.9 x 8.4 mm
Round of the same weight: 9.8 mm
4 carat
Length x width: 13.5 x 8.7 mm
Round of the same weight: 10.2 mm
5 (this page)
Length x width: 14.5 x 9.4 mm
Round of the same weight: 11.0 mm
6 carat
Length x width: 15.4 x 10.0 mm
Round of the same weight: 11.7 mm
8 carat
Length x width: 17.0 x 11.0 mm
Round of the same weight: 12.9 mm

5 carat in other shapes

Every row is a well-cut diamond of 5 carat. The last column is the face-up size against the pear.

Round
Length x width: 11.0 mm
Against pear: +3%
Oval
Length x width: 13.7 x 9.4 mm
Against pear: +9%
Cushion
Length x width: 9.6 x 9.6 mm
Against pear: -12%
Princess
Length x width: 9.4 x 9.4 mm
Against pear: -5%
Emerald cut
Length x width: 12.0 x 8.5 mm
Against pear: +7%
Asscher
Length x width: 9.4 x 9.4 mm
Against pear: -13%
Radiant
Length x width: 11.1 x 8.5 mm
Against pear: same
Marquise
Length x width: 17.8 x 8.9 mm
Against pear: +19%
Heart
Length x width: 11.1 x 11.1 mm
Against pear: -15%
Trillion
Length x width: 12.0 x 12.0 mm
Against pear: -11%
Baguette
Length x width: 13.7 x 6.8 mm
Against pear: +1%

Questions

A 5 carat pear shaped diamond is about 14.5 x 9.4 mm at the usual 1.55:1 ratio.
No. Face-up, a 5 carat pear is 3% smaller than a 5 carat round (11.0 mm).
There is no rule. The stone is 63% of the width of a size 4 finger and 52% of a size 8. Compare it with a ring you have tried on in the finger chart above.
Yes. A lab grown diamond has the same density as a mined one, so it measures the same for the same weight.

More size charts