Emerald-cut Topaz Size Chart
Carat to mm size chart for emerald-cut Topaz, 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:
Topaz Size Chart (Emerald Cut)
0.25ct
4.2×3.11 mm
4.2×3.11 mm
0.5ct
5.28×3.91 mm
5.28×3.91 mm
0.75ct
6.05×4.48 mm
6.05×4.48 mm
1ct
6.66×4.93 mm
6.66×4.93 mm
1.25ct
7.17×5.31 mm
7.17×5.31 mm
1.5ct
7.61×5.64 mm
7.61×5.64 mm
1.75ct
8.02×5.94 mm
8.02×5.94 mm
2ct
8.38×6.21 mm
8.38×6.21 mm
2.5ct
9.03×6.69 mm
9.03×6.69 mm
3ct
9.6×7.11 mm
9.6×7.11 mm
3.5ct
10.11×7.49 mm
10.11×7.49 mm
4ct
10.57×7.83 mm
10.57×7.83 mm
4.5ct
10.99×8.14 mm
10.99×8.14 mm
5ct
11.38×8.43 mm
11.38×8.43 mm
5.5ct
11.75×8.7 mm
11.75×8.7 mm
6ct
12.1×8.96 mm
12.1×8.96 mm
6.5ct
12.42×9.2 mm
12.42×9.2 mm
7ct
12.73×9.43 mm
12.73×9.43 mm
7.5ct
13.03×9.65 mm
13.03×9.65 mm
8ct
13.31×9.86 mm
13.31×9.86 mm
8.5ct
13.58×10.06 mm
13.58×10.06 mm
9ct
13.85×10.26 mm
13.85×10.26 mm
9.5ct
14.09×10.44 mm
14.09×10.44 mm
10ct
14.34×10.62 mm
14.34×10.62 mm
11ct
14.81×10.97 mm
14.81×10.97 mm
12ct
15.24×11.29 mm
15.24×11.29 mm
13ct
15.65×11.59 mm
15.65×11.59 mm
14ct
16.04×11.88 mm
16.04×11.88 mm
15ct
16.42×12.16 mm
16.42×12.16 mm
16ct
16.78×12.43 mm
16.78×12.43 mm
17ct
17.12×12.68 mm
17.12×12.68 mm
18ct
17.44×12.92 mm
17.44×12.92 mm
19ct
17.77×13.16 mm
17.77×13.16 mm
20ct
18.08×13.39 mm
18.08×13.39 mm
22ct
18.66×13.82 mm
18.66×13.82 mm
24ct
19.2×14.22 mm
19.2×14.22 mm
26ct
19.72×14.61 mm
19.72×14.61 mm
28ct
20.21×14.97 mm
20.21×14.97 mm
30ct
20.68×15.32 mm
20.68×15.32 mm
33ct
21.36×15.82 mm
21.36×15.82 mm
36ct
21.98×16.28 mm
21.98×16.28 mm
40ct
22.76×16.86 mm
22.76×16.86 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 Topaz carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 4.2×3.11 mm |
| 0.5 ct | 5.28×3.91 mm |
| 0.75 ct | 6.05×4.48 mm |
| 1 ct | 6.66×4.93 mm |
| 1.25 ct | 7.17×5.31 mm |
| 1.5 ct | 7.61×5.64 mm |
| 1.75 ct | 8.02×5.94 mm |
| 2 ct | 8.38×6.21 mm |
| 2.5 ct | 9.03×6.69 mm |
| 3 ct | 9.6×7.11 mm |
| 3.5 ct | 10.11×7.49 mm |
| 4 ct | 10.57×7.83 mm |
| 4.5 ct | 10.99×8.14 mm |
| 5 ct | 11.38×8.43 mm |
| 5.5 ct | 11.75×8.7 mm |
| 6 ct | 12.1×8.96 mm |
| 6.5 ct | 12.42×9.2 mm |
| 7 ct | 12.73×9.43 mm |
| 7.5 ct | 13.03×9.65 mm |
| 8 ct | 13.31×9.86 mm |
| 8.5 ct | 13.58×10.06 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 13.85×10.26 mm |
| 9.5 ct | 14.09×10.44 mm |
| 10 ct | 14.34×10.62 mm |
| 11 ct | 14.81×10.97 mm |
| 12 ct | 15.24×11.29 mm |
| 13 ct | 15.65×11.59 mm |
| 14 ct | 16.04×11.88 mm |
| 15 ct | 16.42×12.16 mm |
| 16 ct | 16.78×12.43 mm |
| 17 ct | 17.12×12.68 mm |
| 18 ct | 17.44×12.92 mm |
| 19 ct | 17.77×13.16 mm |
| 20 ct | 18.08×13.39 mm |
| 22 ct | 18.66×13.82 mm |
| 24 ct | 19.2×14.22 mm |
| 26 ct | 19.72×14.61 mm |
| 28 ct | 20.21×14.97 mm |
| 30 ct | 20.68×15.32 mm |
| 33 ct | 21.36×15.82 mm |
| 36 ct | 21.98×16.28 mm |
| 40 ct | 22.76×16.86 mm |