Marquise-cut Sinhalite Size Chart
Carat to mm size chart for marquise-cut Sinhalite, 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:
Sinhalite Size Chart (Marquise Cut)
0.25ct
6.42×3.21 mm
6.42×3.21 mm
0.5ct
8.08×4.04 mm
8.08×4.04 mm
0.75ct
9.26×4.63 mm
9.26×4.63 mm
1ct
10.18×5.09 mm
10.18×5.09 mm
1.25ct
10.98×5.49 mm
10.98×5.49 mm
1.5ct
11.66×5.83 mm
11.66×5.83 mm
1.75ct
12.28×6.14 mm
12.28×6.14 mm
2ct
12.84×6.42 mm
12.84×6.42 mm
2.5ct
13.82×6.91 mm
13.82×6.91 mm
3ct
14.68×7.34 mm
14.68×7.34 mm
3.5ct
15.46×7.73 mm
15.46×7.73 mm
4ct
16.16×8.08 mm
16.16×8.08 mm
4.5ct
16.82×8.41 mm
16.82×8.41 mm
5ct
17.42×8.71 mm
17.42×8.71 mm
5.5ct
17.98×8.99 mm
17.98×8.99 mm
6ct
18.5×9.25 mm
18.5×9.25 mm
6.5ct
19×9.5 mm
19×9.5 mm
7ct
19.48×9.74 mm
19.48×9.74 mm
7.5ct
19.94×9.97 mm
19.94×9.97 mm
8ct
20.36×10.18 mm
20.36×10.18 mm
8.5ct
20.78×10.39 mm
20.78×10.39 mm
9ct
21.18×10.59 mm
21.18×10.59 mm
9.5ct
21.58×10.79 mm
21.58×10.79 mm
10ct
21.94×10.97 mm
21.94×10.97 mm
11ct
22.66×11.33 mm
22.66×11.33 mm
12ct
23.32×11.66 mm
23.32×11.66 mm
13ct
23.94×11.97 mm
23.94×11.97 mm
14ct
24.54×12.27 mm
24.54×12.27 mm
15ct
25.12×12.56 mm
25.12×12.56 mm
16ct
25.66×12.83 mm
25.66×12.83 mm
17ct
26.18×13.09 mm
26.18×13.09 mm
18ct
26.7×13.35 mm
26.7×13.35 mm
19ct
27.18×13.59 mm
27.18×13.59 mm
20ct
27.64×13.82 mm
27.64×13.82 mm
22ct
28.54×14.27 mm
28.54×14.27 mm
24ct
29.38×14.69 mm
29.38×14.69 mm
26ct
30.18×15.09 mm
30.18×15.09 mm
28ct
30.92×15.46 mm
30.92×15.46 mm
30ct
31.64×15.82 mm
31.64×15.82 mm
33ct
32.66×16.33 mm
32.66×16.33 mm
36ct
33.62×16.81 mm
33.62×16.81 mm
40ct
34.84×17.42 mm
34.84×17.42 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 Sinhalite carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 6.42×3.21 mm |
| 0.5 ct | 8.08×4.04 mm |
| 0.75 ct | 9.26×4.63 mm |
| 1 ct | 10.18×5.09 mm |
| 1.25 ct | 10.98×5.49 mm |
| 1.5 ct | 11.66×5.83 mm |
| 1.75 ct | 12.28×6.14 mm |
| 2 ct | 12.84×6.42 mm |
| 2.5 ct | 13.82×6.91 mm |
| 3 ct | 14.68×7.34 mm |
| 3.5 ct | 15.46×7.73 mm |
| 4 ct | 16.16×8.08 mm |
| 4.5 ct | 16.82×8.41 mm |
| 5 ct | 17.42×8.71 mm |
| 5.5 ct | 17.98×8.99 mm |
| 6 ct | 18.5×9.25 mm |
| 6.5 ct | 19×9.5 mm |
| 7 ct | 19.48×9.74 mm |
| 7.5 ct | 19.94×9.97 mm |
| 8 ct | 20.36×10.18 mm |
| 8.5 ct | 20.78×10.39 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 21.18×10.59 mm |
| 9.5 ct | 21.58×10.79 mm |
| 10 ct | 21.94×10.97 mm |
| 11 ct | 22.66×11.33 mm |
| 12 ct | 23.32×11.66 mm |
| 13 ct | 23.94×11.97 mm |
| 14 ct | 24.54×12.27 mm |
| 15 ct | 25.12×12.56 mm |
| 16 ct | 25.66×12.83 mm |
| 17 ct | 26.18×13.09 mm |
| 18 ct | 26.7×13.35 mm |
| 19 ct | 27.18×13.59 mm |
| 20 ct | 27.64×13.82 mm |
| 22 ct | 28.54×14.27 mm |
| 24 ct | 29.38×14.69 mm |
| 26 ct | 30.18×15.09 mm |
| 28 ct | 30.92×15.46 mm |
| 30 ct | 31.64×15.82 mm |
| 33 ct | 32.66×16.33 mm |
| 36 ct | 33.62×16.81 mm |
| 40 ct | 34.84×17.42 mm |