Cabochon-cut Sinhalite Size Chart
Carat to mm size chart for cabochon-cut Sinhalite, from 0.25ct to 40ct (at an L/W ratio of 1.5). 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:
Sinhalite Size Chart (Cabochon Cut)
0.25ct
4.52×3.01 mm
4.52×3.01 mm
0.5ct
5.69×3.79 mm
5.69×3.79 mm
0.75ct
6.51×4.34 mm
6.51×4.34 mm
1ct
7.17×4.78 mm
7.17×4.78 mm
1.25ct
7.73×5.15 mm
7.73×5.15 mm
1.5ct
8.21×5.47 mm
8.21×5.47 mm
1.75ct
8.64×5.76 mm
8.64×5.76 mm
2ct
9.03×6.02 mm
9.03×6.02 mm
2.5ct
9.74×6.49 mm
9.74×6.49 mm
3ct
10.34×6.89 mm
10.34×6.89 mm
3.5ct
10.89×7.26 mm
10.89×7.26 mm
4ct
11.39×7.59 mm
11.39×7.59 mm
4.5ct
11.84×7.89 mm
11.84×7.89 mm
5ct
12.26×8.17 mm
12.26×8.17 mm
5.5ct
12.66×8.44 mm
12.66×8.44 mm
6ct
13.02×8.68 mm
13.02×8.68 mm
6.5ct
13.38×8.92 mm
13.38×8.92 mm
7ct
13.71×9.14 mm
13.71×9.14 mm
7.5ct
14.03×9.35 mm
14.03×9.35 mm
8ct
14.34×9.56 mm
14.34×9.56 mm
8.5ct
14.63×9.75 mm
14.63×9.75 mm
9ct
14.91×9.94 mm
14.91×9.94 mm
9.5ct
15.18×10.12 mm
15.18×10.12 mm
10ct
15.45×10.3 mm
15.45×10.3 mm
11ct
15.95×10.63 mm
15.95×10.63 mm
12ct
16.41×10.94 mm
16.41×10.94 mm
13ct
16.86×11.24 mm
16.86×11.24 mm
14ct
17.28×11.52 mm
17.28×11.52 mm
15ct
17.69×11.79 mm
17.69×11.79 mm
16ct
18.06×12.04 mm
18.06×12.04 mm
17ct
18.44×12.29 mm
18.44×12.29 mm
18ct
18.78×12.52 mm
18.78×12.52 mm
19ct
19.13×12.75 mm
19.13×12.75 mm
20ct
19.46×12.97 mm
19.46×12.97 mm
22ct
20.09×13.39 mm
20.09×13.39 mm
24ct
20.69×13.79 mm
20.69×13.79 mm
26ct
21.24×14.16 mm
21.24×14.16 mm
28ct
21.77×14.51 mm
21.77×14.51 mm
30ct
22.28×14.85 mm
22.28×14.85 mm
33ct
23×15.33 mm
23×15.33 mm
36ct
23.67×15.78 mm
23.67×15.78 mm
40ct
24.51×16.34 mm
24.51×16.34 mm
Length-to-width ratio: 1.5, 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 cabochon-cut Sinhalite carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 4.52×3.01 mm |
| 0.5 ct | 5.69×3.79 mm |
| 0.75 ct | 6.51×4.34 mm |
| 1 ct | 7.17×4.78 mm |
| 1.25 ct | 7.73×5.15 mm |
| 1.5 ct | 8.21×5.47 mm |
| 1.75 ct | 8.64×5.76 mm |
| 2 ct | 9.03×6.02 mm |
| 2.5 ct | 9.74×6.49 mm |
| 3 ct | 10.34×6.89 mm |
| 3.5 ct | 10.89×7.26 mm |
| 4 ct | 11.39×7.59 mm |
| 4.5 ct | 11.84×7.89 mm |
| 5 ct | 12.26×8.17 mm |
| 5.5 ct | 12.66×8.44 mm |
| 6 ct | 13.02×8.68 mm |
| 6.5 ct | 13.38×8.92 mm |
| 7 ct | 13.71×9.14 mm |
| 7.5 ct | 14.03×9.35 mm |
| 8 ct | 14.34×9.56 mm |
| 8.5 ct | 14.63×9.75 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 14.91×9.94 mm |
| 9.5 ct | 15.18×10.12 mm |
| 10 ct | 15.45×10.3 mm |
| 11 ct | 15.95×10.63 mm |
| 12 ct | 16.41×10.94 mm |
| 13 ct | 16.86×11.24 mm |
| 14 ct | 17.28×11.52 mm |
| 15 ct | 17.69×11.79 mm |
| 16 ct | 18.06×12.04 mm |
| 17 ct | 18.44×12.29 mm |
| 18 ct | 18.78×12.52 mm |
| 19 ct | 19.13×12.75 mm |
| 20 ct | 19.46×12.97 mm |
| 22 ct | 20.09×13.39 mm |
| 24 ct | 20.69×13.79 mm |
| 26 ct | 21.24×14.16 mm |
| 28 ct | 21.77×14.51 mm |
| 30 ct | 22.28×14.85 mm |
| 33 ct | 23×15.33 mm |
| 36 ct | 23.67×15.78 mm |
| 40 ct | 24.51×16.34 mm |