Cabochon-cut Diopside Size Chart
Carat to mm size chart for cabochon-cut Diopside, 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:
Diopside Size Chart (Cabochon Cut)
0.25ct
4.59×3.06 mm
4.59×3.06 mm
0.5ct
5.79×3.86 mm
5.79×3.86 mm
0.75ct
6.63×4.42 mm
6.63×4.42 mm
1ct
7.29×4.86 mm
7.29×4.86 mm
1.25ct
7.86×5.24 mm
7.86×5.24 mm
1.5ct
8.36×5.57 mm
8.36×5.57 mm
1.75ct
8.79×5.86 mm
8.79×5.86 mm
2ct
9.2×6.13 mm
9.2×6.13 mm
2.5ct
9.9×6.6 mm
9.9×6.6 mm
3ct
10.53×7.02 mm
10.53×7.02 mm
3.5ct
11.09×7.39 mm
11.09×7.39 mm
4ct
11.58×7.72 mm
11.58×7.72 mm
4.5ct
12.05×8.03 mm
12.05×8.03 mm
5ct
12.48×8.32 mm
12.48×8.32 mm
5.5ct
12.89×8.59 mm
12.89×8.59 mm
6ct
13.26×8.84 mm
13.26×8.84 mm
6.5ct
13.62×9.08 mm
13.62×9.08 mm
7ct
13.97×9.31 mm
13.97×9.31 mm
7.5ct
14.28×9.52 mm
14.28×9.52 mm
8ct
14.6×9.73 mm
14.6×9.73 mm
8.5ct
14.9×9.93 mm
14.9×9.93 mm
9ct
15.18×10.12 mm
15.18×10.12 mm
9.5ct
15.45×10.3 mm
15.45×10.3 mm
10ct
15.72×10.48 mm
15.72×10.48 mm
11ct
16.23×10.82 mm
16.23×10.82 mm
12ct
16.71×11.14 mm
16.71×11.14 mm
13ct
17.16×11.44 mm
17.16×11.44 mm
14ct
17.58×11.72 mm
17.58×11.72 mm
15ct
18×12 mm
18×12 mm
16ct
18.39×12.26 mm
18.39×12.26 mm
17ct
18.77×12.51 mm
18.77×12.51 mm
18ct
19.13×12.75 mm
19.13×12.75 mm
19ct
19.47×12.98 mm
19.47×12.98 mm
20ct
19.8×13.2 mm
19.8×13.2 mm
22ct
20.45×13.63 mm
20.45×13.63 mm
24ct
21.05×14.03 mm
21.05×14.03 mm
26ct
21.62×14.41 mm
21.62×14.41 mm
28ct
22.16×14.77 mm
22.16×14.77 mm
30ct
22.68×15.12 mm
22.68×15.12 mm
33ct
23.4×15.6 mm
23.4×15.6 mm
36ct
24.09×16.06 mm
24.09×16.06 mm
40ct
24.96×16.64 mm
24.96×16.64 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 Diopside carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 4.59×3.06 mm |
| 0.5 ct | 5.79×3.86 mm |
| 0.75 ct | 6.63×4.42 mm |
| 1 ct | 7.29×4.86 mm |
| 1.25 ct | 7.86×5.24 mm |
| 1.5 ct | 8.36×5.57 mm |
| 1.75 ct | 8.79×5.86 mm |
| 2 ct | 9.2×6.13 mm |
| 2.5 ct | 9.9×6.6 mm |
| 3 ct | 10.53×7.02 mm |
| 3.5 ct | 11.09×7.39 mm |
| 4 ct | 11.58×7.72 mm |
| 4.5 ct | 12.05×8.03 mm |
| 5 ct | 12.48×8.32 mm |
| 5.5 ct | 12.89×8.59 mm |
| 6 ct | 13.26×8.84 mm |
| 6.5 ct | 13.62×9.08 mm |
| 7 ct | 13.97×9.31 mm |
| 7.5 ct | 14.28×9.52 mm |
| 8 ct | 14.6×9.73 mm |
| 8.5 ct | 14.9×9.93 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 15.18×10.12 mm |
| 9.5 ct | 15.45×10.3 mm |
| 10 ct | 15.72×10.48 mm |
| 11 ct | 16.23×10.82 mm |
| 12 ct | 16.71×11.14 mm |
| 13 ct | 17.16×11.44 mm |
| 14 ct | 17.58×11.72 mm |
| 15 ct | 18×12 mm |
| 16 ct | 18.39×12.26 mm |
| 17 ct | 18.77×12.51 mm |
| 18 ct | 19.13×12.75 mm |
| 19 ct | 19.47×12.98 mm |
| 20 ct | 19.8×13.2 mm |
| 22 ct | 20.45×13.63 mm |
| 24 ct | 21.05×14.03 mm |
| 26 ct | 21.62×14.41 mm |
| 28 ct | 22.16×14.77 mm |
| 30 ct | 22.68×15.12 mm |
| 33 ct | 23.4×15.6 mm |
| 36 ct | 24.09×16.06 mm |
| 40 ct | 24.96×16.64 mm |