How big is a 5 carat sapphire?
By HeyGema™ · Updated
In short
A 5 carat round sapphire measures about 10.6 mm across (0.42 inches), 4% narrower than a 5 carat diamond (11.0 mm). An oval of the same weight is 13.1 x 9.0 mm and an emerald cut 11.5 x 8.2 mm.
- 10.6 mmround sapphire, across
- 0.42 inthe same in inches
- 1.00 gweight
- 64%of a size 6 finger's width
Carat to mm calculator
About 10.6 x 10.6 mm
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
Round
10.6 mm
Oval
13.1 x 9.0 mm
Cushion
9.2 x 9.2 mm
Princess
9.0 x 9.0 mm
Emerald cut
11.5 x 8.2 mm
Asscher
9.0 x 9.0 mm
Radiant
10.7 x 8.2 mm
Pear
13.9 x 9.0 mm
Marquise
17.0 x 8.5 mm
Heart
10.7 x 10.7 mm
Trillion
11.5 x 11.5 mm
Baguette
13.1 x 6.6 mm
= 5 mm in every picture above
5 carat sapphire size by shape
Face-up measurements of a well-cut 5 carat sapphire. Sapphire is denser than diamond (4.00 against 3.52), so it packs more weight into less space and faces up 4% narrower for the same weight.
- Round
- Length x width: 10.6 mm
- In inches: 0.42 in
- Oval
- Length x width: 13.1 x 9.0 mm
- In inches: 0.52 x 0.35 in
- Cushion
- Length x width: 9.2 x 9.2 mm
- In inches: 0.36 x 0.36 in
- Princess
- Length x width: 9.0 x 9.0 mm
- In inches: 0.35 x 0.35 in
- Emerald cut
- Length x width: 11.5 x 8.2 mm
- In inches: 0.45 x 0.32 in
- Asscher
- Length x width: 9.0 x 9.0 mm
- In inches: 0.35 x 0.35 in
- Radiant
- Length x width: 10.7 x 8.2 mm
- In inches: 0.42 x 0.32 in
- Pear
- Length x width: 13.9 x 9.0 mm
- In inches: 0.55 x 0.35 in
- Marquise
- Length x width: 17.0 x 8.5 mm
- In inches: 0.67 x 0.34 in
- Heart
- Length x width: 10.7 x 10.7 mm
- In inches: 0.42 x 0.42 in
- Trillion
- Length x width: 11.5 x 11.5 mm
- In inches: 0.45 x 0.45 in
- Baguette
- Length x width: 13.1 x 6.6 mm
- In inches: 0.52 x 0.26 in
5 carat sapphire against other gems
- Diamond
- Round, 5 carat: 11.0 mm
- Moissanite
- Round, 5 carat: 11.4 mm
- Ruby
- Round, 5 carat: 10.6 mm
- Emerald
- Round, 5 carat: 12.0 mm
- Aquamarine
- 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
- Sapphire (this page)
- Round, 5 carat: 10.6 mm
5 carat sapphire on a finger
- 4
- Finger width: 14.9 mm
- Round covers: 71%
- Oval covers: 61%
- 5
- Finger width: 15.7 mm
- Round covers: 67%
- Oval covers: 57%
- 6
- Finger width: 16.5 mm
- Round covers: 64%
- Oval covers: 55%
- 7
- Finger width: 17.3 mm
- Round covers: 61%
- Oval covers: 52%
- 8
- Finger width: 18.1 mm
- Round covers: 58%
- Oval covers: 50%
- 9
- Finger width: 18.9 mm
- Round covers: 56%
- Oval covers: 48%
Sapphire at nearby weights
- 4 carat sapphire
- Round diameter: 9.8 mm
- 5 ct (this page)
- Round diameter: 10.6 mm
- 10 carat sapphire
- Round diameter: 13.3 mm
Questions
A round 5 carat sapphire is about 10.6 mm across. Other shapes are longer than they are wide: an oval is 13.1 x 9.0 mm.
No. A round 5 carat sapphire is 4% narrower than a 5 carat diamond (11.0 mm).
1.00 grams. A carat is 200 milligrams for every gem.
A round 5 carat sapphire covers 64% of the width of a size 6 finger. Compare it with a ring you have tried on in the finger chart above.