How many carats is a 5.5 mm moissanite?
By HeyGema™ · Updated
In short
A 5.5 mm round moissanite is labeled 0.62 carat, its diamond equivalent weight (DEW). On a scale it weighs about 0.57 carat, because moissanite is lighter than diamond.
- 0.62 ctdiamond equivalent weight
- 0.57 cttrue weight
- 0.22 in5.5 mm in inches
Carat to mm calculator
About 0.57 carat
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
5.5 mm moissanite by shape
For shapes that are longer than they are wide, the long side is 5.5 mm and the width follows the usual ratio.
- Round
- Size: 5.5 mm
- DEW: 0.62 ct
- True weight: 0.57 ct
- Oval
- Size: 5.5 mm x 3.8 mm
- DEW: 0.33 ct
- True weight: 0.3 ct
- Cushion
- Size: 5.5 mm x 5.5 mm
- DEW: 0.95 ct
- True weight: 0.87 ct
- Princess
- Size: 5.5 mm x 5.5 mm
- DEW: 1 ct
- True weight: 0.91 ct
- Emerald cut
- Size: 5.5 mm x 3.9 mm
- DEW: 0.49 ct
- True weight: 0.45 ct
- Asscher
- Size: 5.5 mm x 5.5 mm
- DEW: 1 ct
- True weight: 0.91 ct
- Radiant
- Size: 5.5 mm x 4.2 mm
- DEW: 0.61 ct
- True weight: 0.56 ct
- Pear
- Size: 5.5 mm x 3.5 mm
- DEW: 0.27 ct
- True weight: 0.25 ct
- Marquise
- Size: 5.5 mm x 2.75 mm
- DEW: 0.15 ct
- True weight: 0.14 ct
- Heart
- Size: 5.5 mm x 5.5 mm
- DEW: 0.61 ct
- True weight: 0.56 ct
- Trillion
- Size: 5.5 mm x 5.5 mm
- DEW: 0.49 ct
- True weight: 0.45 ct
- Baguette
- Size: 5.5 mm x 2.75 mm
- DEW: 0.32 ct
- True weight: 0.29 ct
Nearby moissanite sizes
Questions
A round 5.5 mm moissanite is 0.62 carat DEW (the weight of a diamond that size) and about 0.57 carat on a scale.
A 5.5 mm moissanite is the same width as a 5.5 mm diamond, which weighs 0.62 carat. The moissanite weighs less.
5.5 mm is 0.22 inches.