How big is a 5 carat aquamarine?
By HeyGema™ · Updated
In short
A 5 carat round aquamarine measures about 12.0 mm across (0.47 inches), 9% wider than a 5 carat diamond (11.0 mm). An oval of the same weight is 14.9 x 10.3 mm and an emerald cut 13.1 x 9.3 mm.
- 12.0 mmround aquamarine, across
- 0.47 inthe same in inches
- 1.00 gweight
- 73%of a size 6 finger's width
Carat to mm calculator
About 12.0 x 12.0 mm
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
Round
12.0 mm
Oval
14.9 x 10.3 mm
Cushion
10.5 x 10.5 mm
Princess
10.3 x 10.3 mm
Emerald cut
13.1 x 9.3 mm
Asscher
10.3 x 10.3 mm
Radiant
12.1 x 9.3 mm
Pear
15.9 x 10.3 mm
Marquise
19.4 x 9.7 mm
Heart
12.1 x 12.1 mm
Trillion
13.1 x 13.1 mm
Baguette
14.9 x 7.5 mm
= 5 mm in every picture above
5 carat aquamarine size by shape
Face-up measurements of a well-cut 5 carat aquamarine. Aquamarine is lighter than diamond (2.70 against 3.52), so the same weight gives a bigger stone, 9% wider across.
- Round
- Length x width: 12.0 mm
- In inches: 0.47 in
- Oval
- Length x width: 14.9 x 10.3 mm
- In inches: 0.59 x 0.40 in
- Cushion
- Length x width: 10.5 x 10.5 mm
- In inches: 0.41 x 0.41 in
- Princess
- Length x width: 10.3 x 10.3 mm
- In inches: 0.40 x 0.40 in
- Emerald cut
- Length x width: 13.1 x 9.3 mm
- In inches: 0.51 x 0.37 in
- Asscher
- Length x width: 10.3 x 10.3 mm
- In inches: 0.40 x 0.40 in
- Radiant
- Length x width: 12.1 x 9.3 mm
- In inches: 0.48 x 0.37 in
- Pear
- Length x width: 15.9 x 10.3 mm
- In inches: 0.63 x 0.40 in
- Marquise
- Length x width: 19.4 x 9.7 mm
- In inches: 0.76 x 0.38 in
- Heart
- Length x width: 12.1 x 12.1 mm
- In inches: 0.48 x 0.48 in
- Trillion
- Length x width: 13.1 x 13.1 mm
- In inches: 0.51 x 0.51 in
- Baguette
- Length x width: 14.9 x 7.5 mm
- In inches: 0.59 x 0.29 in
5 carat aquamarine against other gems
- Diamond
- Round, 5 carat: 11.0 mm
- Moissanite
- Round, 5 carat: 11.4 mm
- Sapphire
- Round, 5 carat: 10.6 mm
- Ruby
- Round, 5 carat: 10.6 mm
- Emerald
- Round, 5 carat: 12.0 mm
- Morganite
- Round, 5 carat: 11.9 mm
- Tanzanite
- Round, 5 carat: 11.2 mm
- Topaz
- Round, 5 carat: 11.0 mm
- Aquamarine (this page)
- Round, 5 carat: 12.0 mm
5 carat aquamarine on a finger
- 4
- Finger width: 14.9 mm
- Round covers: 81%
- Oval covers: 69%
- 5
- Finger width: 15.7 mm
- Round covers: 77%
- Oval covers: 65%
- 6
- Finger width: 16.5 mm
- Round covers: 73%
- Oval covers: 62%
- 7
- Finger width: 17.3 mm
- Round covers: 70%
- Oval covers: 59%
- 8
- Finger width: 18.1 mm
- Round covers: 66%
- Oval covers: 57%
- 9
- Finger width: 18.9 mm
- Round covers: 64%
- Oval covers: 54%
Aquamarine at nearby weights
- 4 carat aquamarine
- Round diameter: 11.2 mm
- 5 ct (this page)
- Round diameter: 12.0 mm
- 10 carat aquamarine
- Round diameter: 15.2 mm
Questions
A round 5 carat aquamarine is about 12.0 mm across. Other shapes are longer than they are wide: an oval is 14.9 x 10.3 mm.
Yes. A round 5 carat aquamarine is 9% wider than a 5 carat diamond (11.0 mm).
1.00 grams. A carat is 200 milligrams for every gem.
A round 5 carat aquamarine covers 73% of the width of a size 6 finger. Compare it with a ring you have tried on in the finger chart above.