How many carats is a 2 mm diamond?
By HeyGema™ · Updated
In short
A 2 mm round diamond weighs about 0.030 carat (0.006 grams). A 2 mm princess cut weighs about 0.050 carat, and an oval that is 2 mm long about 0.020 carat.
- 0.030 ctround diamond, 2 mm
- 0.006 gweight
- 0.08 in2 mm in inches
Carat to mm calculator
About 0.03 carat
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
2 mm diamond weight by shape
The weight of a well-cut diamond measuring 2 mm. For round and square shapes the number is the diameter or the side. For longer shapes it is the long side, with the width following the usual ratio.
- Round
- Size: 2 mm
- Weight: 0.030 ct
- Oval
- Size: 2 mm x 1.38 mm
- Weight: 0.016 ct
- Cushion
- Size: 2 mm x 2.00 mm
- Weight: 0.046 ct
- Princess
- Size: 2 mm x 2.00 mm
- Weight: 0.048 ct
- Emerald cut
- Size: 2 mm x 1.43 mm
- Weight: 0.023 ct
- Asscher
- Size: 2 mm x 2.00 mm
- Weight: 0.048 ct
- Radiant
- Size: 2 mm x 1.54 mm
- Weight: 0.029 ct
- Pear
- Size: 2 mm x 1.29 mm
- Weight: 0.013 ct
- Marquise
- Size: 2 mm x 1.00 mm
- Weight: 0.0070 ct
- Heart
- Size: 2 mm x 2.00 mm
- Weight: 0.029 ct
- Trillion
- Size: 2 mm x 2.00 mm
- Weight: 0.023 ct
- Baguette
- Size: 2 mm x 1.00 mm
- Weight: 0.016 ct
2 mm stones in other gems
A round stone of the same size weighs differently in each gem, because gems differ in density.
- Diamond
- Weight of a round stone: 0.030 ct
- Moissanite
- Weight of a round stone: 0.027 ct
- Sapphire
- Weight of a round stone: 0.034 ct
- Ruby
- Weight of a round stone: 0.034 ct
- Emerald
- Weight of a round stone: 0.023 ct
- Aquamarine
- Weight of a round stone: 0.023 ct
- Topaz
- Weight of a round stone: 0.030 ct
- Amethyst
- Weight of a round stone: 0.022 ct
- Spinel
- Weight of a round stone: 0.030 ct
- Tanzanite
- Weight of a round stone: 0.028 ct
- Morganite
- Weight of a round stone: 0.024 ct
2 mm diamond studs
A pair of 2 mm round diamond studs has a total carat weight of about 0.060 carat, 0.030 carat for each stone. See the diamond stud earring size chart.
Nearby sizes
Questions
About 0.030 carat for a well-cut round diamond.
A 2 mm princess cut, measured along one side, weighs about 0.050 carat.
A 2 mm round moissanite is labeled 0.030 carat (diamond equivalent weight) and weighs about 0.030 carat. See the moissanite size chart.
2 mm is 0.08 inches.