How big is a 2.25 carat baguette diamond?

By HeyGema™ · Updated

In short

A 2.25 carat baguette diamond measures about 10.5 x 5.2 mm. It faces up 2% smaller than a round diamond of the same weight. On a size 6 finger it covers 32% of the width. For the same weight, a round diamond is 8.5 mm.

Carat to mm calculator

About 10.5 x 5.2 mm

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

2.25 ct baguette
10.5 x 5.2 mm
2.25 ct round
8.5 mm
Side by side
2.25 ct baguette inside 2.25 ct round
A 2.25 carat baguette diamond beside a 2.25 carat round, to the same scale.

2.25 carat baguette diamond size

A well-cut 2.25 carat baguette diamond measures about 10.5 x 5.2 mm (0.41 x 0.21 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 0.45 grams.

2.25 carat baguette size by length-to-width ratio

The same weight can be long and narrow or short and wide. These are 2.25 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: 9.1 x 6.1 mm
Width on the finger: 37% of a size 6 finger
2.00:1
Length x width: 10.5 x 5.2 mm
Width on the finger: 32% of a size 6 finger
2.50:1
Length x width: 11.7 x 4.7 mm
Width on the finger: 28% of a size 6 finger
3.00:1
Length x width: 12.8 x 4.3 mm
Width on the finger: 26% of a size 6 finger

2.25 carat baguette on a finger

5.2 mm
5.2 mm stone on a 16.5 mm finger: it covers 32% of the widthA 2.25 carat baguette diamond on a size 6 finger.
4
Finger width: 14.9 mm
Baguette covers: 35%
5
Finger width: 15.7 mm
Baguette covers: 33%
6
Finger width: 16.5 mm
Baguette covers: 32%
7
Finger width: 17.3 mm
Baguette covers: 30%
8
Finger width: 18.1 mm
Baguette covers: 29%
9
Finger width: 18.9 mm
Baguette covers: 28%

Baguette sizes near 2.25 carat

1.75 carat
Length x width: 9.6 x 4.8 mm
Round of the same weight: 7.8 mm
2 carat
Length x width: 10.1 x 5.0 mm
Round of the same weight: 8.1 mm
2.25 (this page)
Length x width: 10.5 x 5.2 mm
Round of the same weight: 8.5 mm
2.5 carat
Length x width: 10.9 x 5.4 mm
Round of the same weight: 8.8 mm
3 carat
Length x width: 11.5 x 5.8 mm
Round of the same weight: 9.3 mm

2.25 carat in other shapes

Every row is a well-cut diamond of 2.25 carat. The last column is the face-up size against the baguette.

Round
Length x width: 8.5 mm
Against baguette: +2%
Oval
Length x width: 10.5 x 7.2 mm
Against baguette: +8%
Cushion
Length x width: 7.3 x 7.3 mm
Against baguette: -12%
Princess
Length x width: 7.2 x 7.2 mm
Against baguette: -6%
Emerald cut
Length x width: 9.2 x 6.6 mm
Against baguette: +6%
Asscher
Length x width: 7.2 x 7.2 mm
Against baguette: -14%
Radiant
Length x width: 8.5 x 6.6 mm
Against baguette: same
Pear
Length x width: 11.1 x 7.2 mm
Against baguette: -1%
Marquise
Length x width: 13.6 x 6.8 mm
Against baguette: +18%
Heart
Length x width: 8.5 x 8.5 mm
Against baguette: -15%
Trillion
Length x width: 9.2 x 9.2 mm
Against baguette: -12%

Questions

A 2.25 carat baguette diamond is about 10.5 x 5.2 mm at the usual 2.00:1 ratio.
No. Face-up, a 2.25 carat baguette is 2% smaller than a 2.25 carat round (8.5 mm).
There is no rule. The stone is 35% of the width of a size 4 finger and 29% 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