Emerald-cut Spinel Size Chart
Carat to mm size chart for emerald-cut Spinel, 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:
Spinel Size Chart (Emerald Cut)
0.25ct
4.17×3.09 mm
4.17×3.09 mm
0.5ct
5.25×3.89 mm
5.25×3.89 mm
0.75ct
6.01×4.45 mm
6.01×4.45 mm
1ct
6.62×4.9 mm
6.62×4.9 mm
1.25ct
7.13×5.28 mm
7.13×5.28 mm
1.5ct
7.57×5.61 mm
7.57×5.61 mm
1.75ct
7.97×5.9 mm
7.97×5.9 mm
2ct
8.33×6.17 mm
8.33×6.17 mm
2.5ct
8.98×6.65 mm
8.98×6.65 mm
3ct
9.54×7.07 mm
9.54×7.07 mm
3.5ct
10.04×7.44 mm
10.04×7.44 mm
4ct
10.5×7.78 mm
10.5×7.78 mm
4.5ct
10.92×8.09 mm
10.92×8.09 mm
5ct
11.31×8.38 mm
11.31×8.38 mm
5.5ct
11.68×8.65 mm
11.68×8.65 mm
6ct
12.02×8.9 mm
12.02×8.9 mm
6.5ct
12.34×9.14 mm
12.34×9.14 mm
7ct
12.65×9.37 mm
12.65×9.37 mm
7.5ct
12.95×9.59 mm
12.95×9.59 mm
8ct
13.23×9.8 mm
13.23×9.8 mm
8.5ct
13.5×10 mm
13.5×10 mm
9ct
13.76×10.19 mm
13.76×10.19 mm
9.5ct
14.01×10.38 mm
14.01×10.38 mm
10ct
14.24×10.55 mm
14.24×10.55 mm
11ct
14.72×10.9 mm
14.72×10.9 mm
12ct
15.15×11.22 mm
15.15×11.22 mm
13ct
15.55×11.52 mm
15.55×11.52 mm
14ct
15.94×11.81 mm
15.94×11.81 mm
15ct
16.31×12.08 mm
16.31×12.08 mm
16ct
16.66×12.34 mm
16.66×12.34 mm
17ct
17.01×12.6 mm
17.01×12.6 mm
18ct
17.33×12.84 mm
17.33×12.84 mm
19ct
17.64×13.07 mm
17.64×13.07 mm
20ct
17.96×13.3 mm
17.96×13.3 mm
22ct
18.54×13.73 mm
18.54×13.73 mm
24ct
19.08×14.13 mm
19.08×14.13 mm
26ct
19.59×14.51 mm
19.59×14.51 mm
28ct
20.09×14.88 mm
20.09×14.88 mm
30ct
20.55×15.22 mm
20.55×15.22 mm
33ct
21.21×15.71 mm
21.21×15.71 mm
36ct
21.84×16.18 mm
21.84×16.18 mm
40ct
22.61×16.75 mm
22.61×16.75 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 Spinel carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 4.17×3.09 mm |
| 0.5 ct | 5.25×3.89 mm |
| 0.75 ct | 6.01×4.45 mm |
| 1 ct | 6.62×4.9 mm |
| 1.25 ct | 7.13×5.28 mm |
| 1.5 ct | 7.57×5.61 mm |
| 1.75 ct | 7.97×5.9 mm |
| 2 ct | 8.33×6.17 mm |
| 2.5 ct | 8.98×6.65 mm |
| 3 ct | 9.54×7.07 mm |
| 3.5 ct | 10.04×7.44 mm |
| 4 ct | 10.5×7.78 mm |
| 4.5 ct | 10.92×8.09 mm |
| 5 ct | 11.31×8.38 mm |
| 5.5 ct | 11.68×8.65 mm |
| 6 ct | 12.02×8.9 mm |
| 6.5 ct | 12.34×9.14 mm |
| 7 ct | 12.65×9.37 mm |
| 7.5 ct | 12.95×9.59 mm |
| 8 ct | 13.23×9.8 mm |
| 8.5 ct | 13.5×10 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 13.76×10.19 mm |
| 9.5 ct | 14.01×10.38 mm |
| 10 ct | 14.24×10.55 mm |
| 11 ct | 14.72×10.9 mm |
| 12 ct | 15.15×11.22 mm |
| 13 ct | 15.55×11.52 mm |
| 14 ct | 15.94×11.81 mm |
| 15 ct | 16.31×12.08 mm |
| 16 ct | 16.66×12.34 mm |
| 17 ct | 17.01×12.6 mm |
| 18 ct | 17.33×12.84 mm |
| 19 ct | 17.64×13.07 mm |
| 20 ct | 17.96×13.3 mm |
| 22 ct | 18.54×13.73 mm |
| 24 ct | 19.08×14.13 mm |
| 26 ct | 19.59×14.51 mm |
| 28 ct | 20.09×14.88 mm |
| 30 ct | 20.55×15.22 mm |
| 33 ct | 21.21×15.71 mm |
| 36 ct | 21.84×16.18 mm |
| 40 ct | 22.61×16.75 mm |