How many carats is a 8 mm moissanite?
By HeyGema™ · Updated
In short
A 8 mm round moissanite is labeled 1.91 carat, its diamond equivalent weight (DEW). On a scale it weighs about 1.75 carat, because moissanite is lighter than diamond.
- 1.91 ctdiamond equivalent weight
- 1.75 cttrue weight
- 0.31 in8 mm in inches
Carat to mm calculator
About 1.75 carat
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
8 mm moissanite by shape
For shapes that are longer than they are wide, the long side is 8 mm and the width follows the usual ratio.
- Round
- Size: 8 mm
- DEW: 1.91 ct
- True weight: 1.75 ct
- Oval
- Size: 8 mm x 5.5 mm
- DEW: 1 ct
- True weight: 0.91 ct
- Cushion
- Size: 8 mm x 8.0 mm
- DEW: 2.92 ct
- True weight: 2.67 ct
- Princess
- Size: 8 mm x 8.0 mm
- DEW: 3.08 ct
- True weight: 2.82 ct
- Emerald cut
- Size: 8 mm x 5.7 mm
- DEW: 1.49 ct
- True weight: 1.36 ct
- Asscher
- Size: 8 mm x 8.0 mm
- DEW: 3.08 ct
- True weight: 2.82 ct
- Radiant
- Size: 8 mm x 6.2 mm
- DEW: 1.86 ct
- True weight: 1.7 ct
- Pear
- Size: 8 mm x 5.2 mm
- DEW: 0.83 ct
- True weight: 0.76 ct
- Marquise
- Size: 8 mm x 4.0 mm
- DEW: 0.46 ct
- True weight: 0.42 ct
- Heart
- Size: 8 mm x 8.0 mm
- DEW: 1.86 ct
- True weight: 1.7 ct
- Trillion
- Size: 8 mm x 8.0 mm
- DEW: 1.49 ct
- True weight: 1.36 ct
- Baguette
- Size: 8 mm x 4.0 mm
- DEW: 1 ct
- True weight: 0.91 ct
Nearby moissanite sizes
Questions
A round 8 mm moissanite is 1.91 carat DEW (the weight of a diamond that size) and about 1.75 carat on a scale.
A 8 mm moissanite is the same width as a 8 mm diamond, which weighs 1.91 carat. The moissanite weighs less.
8 mm is 0.31 inches.