Emerald-cut Moissanite Size Chart
Carat to mm size chart for emerald-cut Moissanite, from 0.25ct to 40ct (at an L/W ratio of 1.35). The chart is interactive, meaning you can click on any stone to view it directly in the size simulator.
Gem sizes are shown in actual, real-world size, provided your device screen size is in diagonal. If this is not correct, change it here:
Gem sizes are shown in actual, real-world size, provided your device screen size is in diagonal. If this is not correct, change it here:
Actual size is set for screen
Gemstone:
Shape:
Moissanite Size Chart (Emerald Cut)
0.25ct
4.32×3.2 mm
4.32×3.2 mm
0.5ct
5.45×4.04 mm
5.45×4.04 mm
0.75ct
6.24×4.62 mm
6.24×4.62 mm
1ct
6.86×5.08 mm
6.86×5.08 mm
1.25ct
7.4×5.48 mm
7.4×5.48 mm
1.5ct
7.86×5.82 mm
7.86×5.82 mm
1.75ct
8.28×6.13 mm
8.28×6.13 mm
2ct
8.65×6.41 mm
8.65×6.41 mm
2.5ct
9.32×6.9 mm
9.32×6.9 mm
3ct
9.9×7.33 mm
9.9×7.33 mm
3.5ct
10.42×7.72 mm
10.42×7.72 mm
4ct
10.89×8.07 mm
10.89×8.07 mm
4.5ct
11.33×8.39 mm
11.33×8.39 mm
5ct
11.73×8.69 mm
11.73×8.69 mm
5.5ct
12.12×8.98 mm
12.12×8.98 mm
6ct
12.47×9.24 mm
12.47×9.24 mm
6.5ct
12.81×9.49 mm
12.81×9.49 mm
7ct
13.14×9.73 mm
13.14×9.73 mm
7.5ct
13.43×9.95 mm
13.43×9.95 mm
8ct
13.73×10.17 mm
13.73×10.17 mm
8.5ct
14.01×10.38 mm
14.01×10.38 mm
9ct
14.28×10.58 mm
14.28×10.58 mm
9.5ct
14.54×10.77 mm
14.54×10.77 mm
10ct
14.78×10.95 mm
14.78×10.95 mm
11ct
15.27×11.31 mm
15.27×11.31 mm
12ct
15.71×11.64 mm
15.71×11.64 mm
13ct
16.15×11.96 mm
16.15×11.96 mm
14ct
16.54×12.25 mm
16.54×12.25 mm
15ct
16.93×12.54 mm
16.93×12.54 mm
16ct
17.29×12.81 mm
17.29×12.81 mm
17ct
17.64×13.07 mm
17.64×13.07 mm
18ct
18×13.33 mm
18×13.33 mm
19ct
18.32×13.57 mm
18.32×13.57 mm
20ct
18.63×13.8 mm
18.63×13.8 mm
22ct
19.24×14.25 mm
19.24×14.25 mm
24ct
19.8×14.67 mm
19.8×14.67 mm
26ct
20.33×15.06 mm
20.33×15.06 mm
28ct
20.84×15.44 mm
20.84×15.44 mm
30ct
21.33×15.8 mm
21.33×15.8 mm
33ct
22.02×16.31 mm
22.02×16.31 mm
36ct
22.67×16.79 mm
22.67×16.79 mm
40ct
23.48×17.39 mm
23.48×17.39 mm
Length-to-width ratio: 1.35, Color:
Download Chart
Note: If you want to cut out the shapes and try them on your finger, print out the PDF chart. The image (png) chart will not print at actual size.
Carat-to-MM Conversion Table
Use this conversion table to quickly convert emerald-cut Moissanite carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 4.32×3.2 mm |
| 0.5 ct | 5.45×4.04 mm |
| 0.75 ct | 6.24×4.62 mm |
| 1 ct | 6.86×5.08 mm |
| 1.25 ct | 7.4×5.48 mm |
| 1.5 ct | 7.86×5.82 mm |
| 1.75 ct | 8.28×6.13 mm |
| 2 ct | 8.65×6.41 mm |
| 2.5 ct | 9.32×6.9 mm |
| 3 ct | 9.9×7.33 mm |
| 3.5 ct | 10.42×7.72 mm |
| 4 ct | 10.89×8.07 mm |
| 4.5 ct | 11.33×8.39 mm |
| 5 ct | 11.73×8.69 mm |
| 5.5 ct | 12.12×8.98 mm |
| 6 ct | 12.47×9.24 mm |
| 6.5 ct | 12.81×9.49 mm |
| 7 ct | 13.14×9.73 mm |
| 7.5 ct | 13.43×9.95 mm |
| 8 ct | 13.73×10.17 mm |
| 8.5 ct | 14.01×10.38 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 14.28×10.58 mm |
| 9.5 ct | 14.54×10.77 mm |
| 10 ct | 14.78×10.95 mm |
| 11 ct | 15.27×11.31 mm |
| 12 ct | 15.71×11.64 mm |
| 13 ct | 16.15×11.96 mm |
| 14 ct | 16.54×12.25 mm |
| 15 ct | 16.93×12.54 mm |
| 16 ct | 17.29×12.81 mm |
| 17 ct | 17.64×13.07 mm |
| 18 ct | 18×13.33 mm |
| 19 ct | 18.32×13.57 mm |
| 20 ct | 18.63×13.8 mm |
| 22 ct | 19.24×14.25 mm |
| 24 ct | 19.8×14.67 mm |
| 26 ct | 20.33×15.06 mm |
| 28 ct | 20.84×15.44 mm |
| 30 ct | 21.33×15.8 mm |
| 33 ct | 22.02×16.31 mm |
| 36 ct | 22.67×16.79 mm |
| 40 ct | 23.48×17.39 mm |