Marquise-cut Diopside Size Chart
Carat to mm size chart for marquise-cut Diopside, from 0.25ct to 40ct (at an L/W ratio of 2). 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 (Marquise Cut)
0.25ct
6.54×3.27 mm
6.54×3.27 mm
0.5ct
8.22×4.11 mm
8.22×4.11 mm
0.75ct
9.42×4.71 mm
9.42×4.71 mm
1ct
10.36×5.18 mm
10.36×5.18 mm
1.25ct
11.16×5.58 mm
11.16×5.58 mm
1.5ct
11.86×5.93 mm
11.86×5.93 mm
1.75ct
12.5×6.25 mm
12.5×6.25 mm
2ct
13.06×6.53 mm
13.06×6.53 mm
2.5ct
14.06×7.03 mm
14.06×7.03 mm
3ct
14.96×7.48 mm
14.96×7.48 mm
3.5ct
15.74×7.87 mm
15.74×7.87 mm
4ct
16.46×8.23 mm
16.46×8.23 mm
4.5ct
17.12×8.56 mm
17.12×8.56 mm
5ct
17.72×8.86 mm
17.72×8.86 mm
5.5ct
18.3×9.15 mm
18.3×9.15 mm
6ct
18.84×9.42 mm
18.84×9.42 mm
6.5ct
19.34×9.67 mm
19.34×9.67 mm
7ct
19.84×9.92 mm
19.84×9.92 mm
7.5ct
20.3×10.15 mm
20.3×10.15 mm
8ct
20.74×10.37 mm
20.74×10.37 mm
8.5ct
21.16×10.58 mm
21.16×10.58 mm
9ct
21.56×10.78 mm
21.56×10.78 mm
9.5ct
21.96×10.98 mm
21.96×10.98 mm
10ct
22.34×11.17 mm
22.34×11.17 mm
11ct
23.06×11.53 mm
23.06×11.53 mm
12ct
23.74×11.87 mm
23.74×11.87 mm
13ct
24.38×12.19 mm
24.38×12.19 mm
14ct
24.98×12.49 mm
24.98×12.49 mm
15ct
25.56×12.78 mm
25.56×12.78 mm
16ct
26.12×13.06 mm
26.12×13.06 mm
17ct
26.66×13.33 mm
26.66×13.33 mm
18ct
27.16×13.58 mm
27.16×13.58 mm
19ct
27.66×13.83 mm
27.66×13.83 mm
20ct
28.14×14.07 mm
28.14×14.07 mm
22ct
29.04×14.52 mm
29.04×14.52 mm
24ct
29.9×14.95 mm
29.9×14.95 mm
26ct
30.72×15.36 mm
30.72×15.36 mm
28ct
31.48×15.74 mm
31.48×15.74 mm
30ct
32.22×16.11 mm
32.22×16.11 mm
33ct
33.26×16.63 mm
33.26×16.63 mm
36ct
34.22×17.11 mm
34.22×17.11 mm
40ct
35.46×17.73 mm
35.46×17.73 mm
Length-to-width ratio: 2, 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 marquise-cut Diopside carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 6.54×3.27 mm |
| 0.5 ct | 8.22×4.11 mm |
| 0.75 ct | 9.42×4.71 mm |
| 1 ct | 10.36×5.18 mm |
| 1.25 ct | 11.16×5.58 mm |
| 1.5 ct | 11.86×5.93 mm |
| 1.75 ct | 12.5×6.25 mm |
| 2 ct | 13.06×6.53 mm |
| 2.5 ct | 14.06×7.03 mm |
| 3 ct | 14.96×7.48 mm |
| 3.5 ct | 15.74×7.87 mm |
| 4 ct | 16.46×8.23 mm |
| 4.5 ct | 17.12×8.56 mm |
| 5 ct | 17.72×8.86 mm |
| 5.5 ct | 18.3×9.15 mm |
| 6 ct | 18.84×9.42 mm |
| 6.5 ct | 19.34×9.67 mm |
| 7 ct | 19.84×9.92 mm |
| 7.5 ct | 20.3×10.15 mm |
| 8 ct | 20.74×10.37 mm |
| 8.5 ct | 21.16×10.58 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 21.56×10.78 mm |
| 9.5 ct | 21.96×10.98 mm |
| 10 ct | 22.34×11.17 mm |
| 11 ct | 23.06×11.53 mm |
| 12 ct | 23.74×11.87 mm |
| 13 ct | 24.38×12.19 mm |
| 14 ct | 24.98×12.49 mm |
| 15 ct | 25.56×12.78 mm |
| 16 ct | 26.12×13.06 mm |
| 17 ct | 26.66×13.33 mm |
| 18 ct | 27.16×13.58 mm |
| 19 ct | 27.66×13.83 mm |
| 20 ct | 28.14×14.07 mm |
| 22 ct | 29.04×14.52 mm |
| 24 ct | 29.9×14.95 mm |
| 26 ct | 30.72×15.36 mm |
| 28 ct | 31.48×15.74 mm |
| 30 ct | 32.22×16.11 mm |
| 33 ct | 33.26×16.63 mm |
| 36 ct | 34.22×17.11 mm |
| 40 ct | 35.46×17.73 mm |