How big is a 10 carat zircon?
By HeyGema™ · Updated
In short
A 10 carat round zircon measures about 12.6 mm across (0.50 inches), 9% narrower than a 10 carat diamond (13.9 mm). An oval of the same weight is 15.7 x 10.8 mm and an emerald cut 13.7 x 9.8 mm.
- 12.6 mmround zircon, across
- 0.50 inthe same in inches
- 2.00 gweight
- 77%of a size 6 finger's width
Carat to mm calculator
About 12.6 x 12.6 mm
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
Round
12.6 mm
Oval
15.7 x 10.8 mm
Cushion
11.0 x 11.0 mm
Princess
10.8 x 10.8 mm
Emerald cut
13.7 x 9.8 mm
Asscher
10.8 x 10.8 mm
Radiant
12.7 x 9.8 mm
Pear
16.6 x 10.8 mm
Marquise
20.4 x 10.2 mm
Heart
12.7 x 12.7 mm
Trillion
13.7 x 13.7 mm
Baguette
15.7 x 7.8 mm
= 5 mm in every picture above
10 carat zircon size by shape
Face-up measurements of a well-cut 10 carat zircon. Zircon is denser than diamond (4.69 against 3.52), so it packs more weight into less space and faces up 9% narrower for the same weight.
- Round
- Length x width: 12.6 mm
- In inches: 0.50 in
- Oval
- Length x width: 15.7 x 10.8 mm
- In inches: 0.62 x 0.42 in
- Cushion
- Length x width: 11.0 x 11.0 mm
- In inches: 0.43 x 0.43 in
- Princess
- Length x width: 10.8 x 10.8 mm
- In inches: 0.42 x 0.42 in
- Emerald cut
- Length x width: 13.7 x 9.8 mm
- In inches: 0.54 x 0.39 in
- Asscher
- Length x width: 10.8 x 10.8 mm
- In inches: 0.42 x 0.42 in
- Radiant
- Length x width: 12.7 x 9.8 mm
- In inches: 0.50 x 0.39 in
- Pear
- Length x width: 16.6 x 10.8 mm
- In inches: 0.66 x 0.42 in
- Marquise
- Length x width: 20.4 x 10.2 mm
- In inches: 0.80 x 0.40 in
- Heart
- Length x width: 12.7 x 12.7 mm
- In inches: 0.50 x 0.50 in
- Trillion
- Length x width: 13.7 x 13.7 mm
- In inches: 0.54 x 0.54 in
- Baguette
- Length x width: 15.7 x 7.8 mm
- In inches: 0.62 x 0.31 in
10 carat zircon against other gems
- Diamond
- Round, 10 carat: 13.9 mm
- Moissanite
- Round, 10 carat: 14.3 mm
- Sapphire
- Round, 10 carat: 13.3 mm
- Ruby
- Round, 10 carat: 13.3 mm
- Emerald
- Round, 10 carat: 15.1 mm
- Aquamarine
- Round, 10 carat: 15.2 mm
- Morganite
- Round, 10 carat: 15.0 mm
- Tanzanite
- Round, 10 carat: 14.1 mm
- Zircon (this page)
- Round, 10 carat: 12.6 mm
10 carat zircon on a finger
- 4
- Finger width: 14.9 mm
- Round covers: 85%
- Oval covers: 72%
- 5
- Finger width: 15.7 mm
- Round covers: 80%
- Oval covers: 69%
- 6
- Finger width: 16.5 mm
- Round covers: 77%
- Oval covers: 65%
- 7
- Finger width: 17.3 mm
- Round covers: 73%
- Oval covers: 62%
- 8
- Finger width: 18.1 mm
- Round covers: 70%
- Oval covers: 59%
- 9
- Finger width: 18.9 mm
- Round covers: 67%
- Oval covers: 57%
Zircon at nearby weights
- 5 carat zircon
- Round diameter: 10.0 mm
- 10 ct (this page)
- Round diameter: 12.6 mm
Questions
A round 10 carat zircon is about 12.6 mm across. Other shapes are longer than they are wide: an oval is 15.7 x 10.8 mm.
No. A round 10 carat zircon is 9% narrower than a 10 carat diamond (13.9 mm).
2.00 grams. A carat is 200 milligrams for every gem.
A round 10 carat zircon covers 77% of the width of a size 6 finger. Compare it with a ring you have tried on in the finger chart above.