How big is a 0.5 carat marquise diamond?
By HeyGema™ · Updated
In short
A 0.5 carat marquise diamond measures about 8.3 x 4.1 mm. It faces up 16% bigger than a round diamond of the same weight. On a size 6 finger it covers 25% of the width. For the same weight, a round diamond is 5.1 mm.
- 8.3 x 4.1 mm0.5 carat marquise
- 0.32 x 0.16 inthe same in inches
- +16%face-up size vs a round
- 25%of a size 6 finger's width
Carat to mm calculator
About 8.3 x 4.1 mm
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
0.5 carat marquise diamond size
A well-cut 0.5 carat marquise diamond measures about 8.3 x 4.1 mm (0.32 x 0.16 inches) at a length-to-width ratio of 2.00:1. It faces up 16% bigger than a round diamond of the same weight. It weighs 0.10 grams.
0.5 carat marquise size by length-to-width ratio
The same weight can be long and narrow or short and wide. These are 0.5 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.
- 1.80:1
- Length x width: 7.8 x 4.4 mm
- Width on the finger: 26% of a size 6 finger
- 2.00:1
- Length x width: 8.3 x 4.1 mm
- Width on the finger: 25% of a size 6 finger
- 2.20:1
- Length x width: 8.7 x 3.9 mm
- Width on the finger: 24% of a size 6 finger
0.5 carat marquise on a finger
- 4
- Finger width: 14.9 mm
- Marquise covers: 28%
- 5
- Finger width: 15.7 mm
- Marquise covers: 26%
- 6
- Finger width: 16.5 mm
- Marquise covers: 25%
- 7
- Finger width: 17.3 mm
- Marquise covers: 24%
- 8
- Finger width: 18.1 mm
- Marquise covers: 23%
- 9
- Finger width: 18.9 mm
- Marquise covers: 22%
Marquise sizes near 0.5 carat
- 0.25 carat
- Length x width: 6.6 x 3.3 mm
- Round of the same weight: 4.1 mm
- 0.33 carat
- Length x width: 7.2 x 3.6 mm
- Round of the same weight: 4.5 mm
- 0.5 (this page)
- Length x width: 8.3 x 4.1 mm
- Round of the same weight: 5.1 mm
- 0.75 carat
- Length x width: 9.4 x 4.7 mm
- Round of the same weight: 5.9 mm
- 1 carat
- Length x width: 10.4 x 5.2 mm
- Round of the same weight: 6.5 mm
0.5 carat in other shapes
Every row is a well-cut diamond of 0.5 carat. The last column is the face-up size against the marquise.
- Round
- Length x width: 5.1 mm
- Against marquise: -14%
- Oval
- Length x width: 6.3 x 4.4 mm
- Against marquise: -9%
- Cushion
- Length x width: 4.4 x 4.4 mm
- Against marquise: -26%
- Princess
- Length x width: 4.4 x 4.4 mm
- Against marquise: -21%
- Emerald cut
- Length x width: 5.6 x 4.0 mm
- Against marquise: -10%
- Asscher
- Length x width: 4.4 x 4.4 mm
- Against marquise: -27%
- Radiant
- Length x width: 5.2 x 4.0 mm
- Against marquise: -16%
- Pear
- Length x width: 6.7 x 4.4 mm
- Against marquise: -16%
- Heart
- Length x width: 5.2 x 5.2 mm
- Against marquise: -28%
- Trillion
- Length x width: 5.6 x 5.6 mm
- Against marquise: -25%
- Baguette
- Length x width: 6.3 x 3.2 mm
- Against marquise: -15%