Marquise-cut Kyanite Size Chart
Carat to mm size chart for marquise-cut Kyanite, 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:
Kyanite Size Chart (Marquise Cut)
0.25ct
6.3×3.15 mm
6.3×3.15 mm
0.5ct
7.94×3.97 mm
7.94×3.97 mm
0.75ct
9.08×4.54 mm
9.08×4.54 mm
1ct
10×5 mm
10×5 mm
1.25ct
10.76×5.38 mm
10.76×5.38 mm
1.5ct
11.44×5.72 mm
11.44×5.72 mm
1.75ct
12.04×6.02 mm
12.04×6.02 mm
2ct
12.6×6.3 mm
12.6×6.3 mm
2.5ct
13.56×6.78 mm
13.56×6.78 mm
3ct
14.42×7.21 mm
14.42×7.21 mm
3.5ct
15.18×7.59 mm
15.18×7.59 mm
4ct
15.86×7.93 mm
15.86×7.93 mm
4.5ct
16.5×8.25 mm
16.5×8.25 mm
5ct
17.1×8.55 mm
17.1×8.55 mm
5.5ct
17.64×8.82 mm
17.64×8.82 mm
6ct
18.16×9.08 mm
18.16×9.08 mm
6.5ct
18.66×9.33 mm
18.66×9.33 mm
7ct
19.12×9.56 mm
19.12×9.56 mm
7.5ct
19.56×9.78 mm
19.56×9.78 mm
8ct
20×10 mm
20×10 mm
8.5ct
20.4×10.2 mm
20.4×10.2 mm
9ct
20.8×10.4 mm
20.8×10.4 mm
9.5ct
21.18×10.59 mm
21.18×10.59 mm
10ct
21.54×10.77 mm
21.54×10.77 mm
11ct
22.24×11.12 mm
22.24×11.12 mm
12ct
22.88×11.44 mm
22.88×11.44 mm
13ct
23.5×11.75 mm
23.5×11.75 mm
14ct
24.1×12.05 mm
24.1×12.05 mm
15ct
24.66×12.33 mm
24.66×12.33 mm
16ct
25.2×12.6 mm
25.2×12.6 mm
17ct
25.7×12.85 mm
25.7×12.85 mm
18ct
26.2×13.1 mm
26.2×13.1 mm
19ct
26.68×13.34 mm
26.68×13.34 mm
20ct
27.14×13.57 mm
27.14×13.57 mm
22ct
28.02×14.01 mm
28.02×14.01 mm
24ct
28.84×14.42 mm
28.84×14.42 mm
26ct
29.62×14.81 mm
29.62×14.81 mm
28ct
30.36×15.18 mm
30.36×15.18 mm
30ct
31.06×15.53 mm
31.06×15.53 mm
33ct
32.06×16.03 mm
32.06×16.03 mm
36ct
33×16.5 mm
33×16.5 mm
40ct
34.18×17.09 mm
34.18×17.09 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 Kyanite carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 6.3×3.15 mm |
| 0.5 ct | 7.94×3.97 mm |
| 0.75 ct | 9.08×4.54 mm |
| 1 ct | 10×5 mm |
| 1.25 ct | 10.76×5.38 mm |
| 1.5 ct | 11.44×5.72 mm |
| 1.75 ct | 12.04×6.02 mm |
| 2 ct | 12.6×6.3 mm |
| 2.5 ct | 13.56×6.78 mm |
| 3 ct | 14.42×7.21 mm |
| 3.5 ct | 15.18×7.59 mm |
| 4 ct | 15.86×7.93 mm |
| 4.5 ct | 16.5×8.25 mm |
| 5 ct | 17.1×8.55 mm |
| 5.5 ct | 17.64×8.82 mm |
| 6 ct | 18.16×9.08 mm |
| 6.5 ct | 18.66×9.33 mm |
| 7 ct | 19.12×9.56 mm |
| 7.5 ct | 19.56×9.78 mm |
| 8 ct | 20×10 mm |
| 8.5 ct | 20.4×10.2 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 20.8×10.4 mm |
| 9.5 ct | 21.18×10.59 mm |
| 10 ct | 21.54×10.77 mm |
| 11 ct | 22.24×11.12 mm |
| 12 ct | 22.88×11.44 mm |
| 13 ct | 23.5×11.75 mm |
| 14 ct | 24.1×12.05 mm |
| 15 ct | 24.66×12.33 mm |
| 16 ct | 25.2×12.6 mm |
| 17 ct | 25.7×12.85 mm |
| 18 ct | 26.2×13.1 mm |
| 19 ct | 26.68×13.34 mm |
| 20 ct | 27.14×13.57 mm |
| 22 ct | 28.02×14.01 mm |
| 24 ct | 28.84×14.42 mm |
| 26 ct | 29.62×14.81 mm |
| 28 ct | 30.36×15.18 mm |
| 30 ct | 31.06×15.53 mm |
| 33 ct | 32.06×16.03 mm |
| 36 ct | 33×16.5 mm |
| 40 ct | 34.18×17.09 mm |