How big is a 5 carat baguette diamond?

By HeyGema™ · Updated

In short

A 5 carat baguette diamond measures about 13.7 x 6.8 mm. It faces up 2% smaller than a round diamond of the same weight. On a size 6 finger it covers 41% of the width. For the same weight, a round diamond is 11.0 mm.

Carat to mm calculator

About 13.7 x 6.8 mm

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

5 ct baguette
13.7 x 6.8 mm
5 ct round
11.0 mm
Side by side
5 ct baguette inside 5 ct round
A 5 carat baguette diamond beside a 5 carat round, to the same scale.

5 carat baguette diamond size

A well-cut 5 carat baguette diamond measures about 13.7 x 6.8 mm (0.54 x 0.27 inches) at a length-to-width ratio of 2.00:1. It faces up 2% smaller than a round diamond of the same weight. It weighs 1.00 grams.

5 carat baguette 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.

1.50:1
Length x width: 11.8 x 7.9 mm
Width on the finger: 48% of a size 6 finger
2.00:1
Length x width: 13.7 x 6.8 mm
Width on the finger: 41% of a size 6 finger
2.50:1
Length x width: 15.3 x 6.1 mm
Width on the finger: 37% of a size 6 finger
3.00:1
Length x width: 16.8 x 5.6 mm
Width on the finger: 34% of a size 6 finger

5 carat baguette on a finger

6.8 mm
6.8 mm stone on a 16.5 mm finger: it covers 41% of the widthA 5 carat baguette diamond on a size 6 finger.
4
Finger width: 14.9 mm
Baguette covers: 46%
5
Finger width: 15.7 mm
Baguette covers: 44%
6
Finger width: 16.5 mm
Baguette covers: 41%
7
Finger width: 17.3 mm
Baguette covers: 39%
8
Finger width: 18.1 mm
Baguette covers: 38%
9
Finger width: 18.9 mm
Baguette covers: 36%

Baguette sizes near 5 carat

3.5 carat
Length x width: 12.1 x 6.1 mm
Round of the same weight: 9.8 mm
4 carat
Length x width: 12.7 x 6.3 mm
Round of the same weight: 10.2 mm
5 (this page)
Length x width: 13.7 x 6.8 mm
Round of the same weight: 11.0 mm
6 carat
Length x width: 14.5 x 7.3 mm
Round of the same weight: 11.7 mm
8 carat
Length x width: 16.0 x 8.0 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 baguette.

Round
Length x width: 11.0 mm
Against baguette: +2%
Oval
Length x width: 13.7 x 9.4 mm
Against baguette: +8%
Cushion
Length x width: 9.6 x 9.6 mm
Against baguette: -12%
Princess
Length x width: 9.4 x 9.4 mm
Against baguette: -6%
Emerald cut
Length x width: 12.0 x 8.5 mm
Against baguette: +6%
Asscher
Length x width: 9.4 x 9.4 mm
Against baguette: -14%
Radiant
Length x width: 11.1 x 8.5 mm
Against baguette: same
Pear
Length x width: 14.5 x 9.4 mm
Against baguette: -1%
Marquise
Length x width: 17.8 x 8.9 mm
Against baguette: +18%
Heart
Length x width: 11.1 x 11.1 mm
Against baguette: -15%
Trillion
Length x width: 12.0 x 12.0 mm
Against baguette: -12%

Questions

A 5 carat baguette diamond is about 13.7 x 6.8 mm at the usual 2.00:1 ratio.
No. Face-up, a 5 carat baguette is 2% smaller than a 5 carat round (11.0 mm).
There is no rule. The stone is 46% of the width of a size 4 finger and 38% 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