How many carats is a 6 mm moissanite?
By HeyGema™ · Updated
In short
A 6 mm round moissanite is labeled 0.8 carat, its diamond equivalent weight (DEW). On a scale it weighs about 0.74 carat, because moissanite is lighter than diamond.
- 0.8 ctdiamond equivalent weight
- 0.74 cttrue weight
- 0.24 in6 mm in inches
Carat to mm calculator
About 0.74 carat
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
6 mm moissanite by shape
For shapes that are longer than they are wide, the long side is 6 mm and the width follows the usual ratio.
- Round
- Size: 6 mm
- DEW: 0.8 ct
- True weight: 0.73 ct
- Oval
- Size: 6 mm x 4.1 mm
- DEW: 0.42 ct
- True weight: 0.38 ct
- Cushion
- Size: 6 mm x 6.0 mm
- DEW: 1.23 ct
- True weight: 1.13 ct
- Princess
- Size: 6 mm x 6.0 mm
- DEW: 1.3 ct
- True weight: 1.19 ct
- Emerald cut
- Size: 6 mm x 4.3 mm
- DEW: 0.63 ct
- True weight: 0.58 ct
- Asscher
- Size: 6 mm x 6.0 mm
- DEW: 1.3 ct
- True weight: 1.19 ct
- Radiant
- Size: 6 mm x 4.6 mm
- DEW: 0.79 ct
- True weight: 0.72 ct
- Pear
- Size: 6 mm x 3.9 mm
- DEW: 0.35 ct
- True weight: 0.32 ct
- Marquise
- Size: 6 mm x 3.0 mm
- DEW: 0.19 ct
- True weight: 0.17 ct
- Heart
- Size: 6 mm x 6.0 mm
- DEW: 0.79 ct
- True weight: 0.72 ct
- Trillion
- Size: 6 mm x 6.0 mm
- DEW: 0.63 ct
- True weight: 0.58 ct
- Baguette
- Size: 6 mm x 3.0 mm
- DEW: 0.42 ct
- True weight: 0.38 ct
Nearby moissanite sizes
Questions
A round 6 mm moissanite is 0.8 carat DEW (the weight of a diamond that size) and about 0.74 carat on a scale.
A 6 mm moissanite is the same width as a 6 mm diamond, which weighs 0.8 carat. The moissanite weighs less.
6 mm is 0.24 inches.