Marquise-cut Morganite Size Chart
Carat to mm size chart for marquise-cut Morganite, 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:
Morganite Size Chart (Marquise Cut)
0.25ct
6.9×3.45 mm
6.9×3.45 mm
0.5ct
8.7×4.35 mm
8.7×4.35 mm
0.75ct
9.94×4.97 mm
9.94×4.97 mm
1ct
10.96×5.48 mm
10.96×5.48 mm
1.25ct
11.8×5.9 mm
11.8×5.9 mm
1.5ct
12.54×6.27 mm
12.54×6.27 mm
1.75ct
13.2×6.6 mm
13.2×6.6 mm
2ct
13.8×6.9 mm
13.8×6.9 mm
2.5ct
14.86×7.43 mm
14.86×7.43 mm
3ct
15.8×7.9 mm
15.8×7.9 mm
3.5ct
16.62×8.31 mm
16.62×8.31 mm
4ct
17.38×8.69 mm
17.38×8.69 mm
4.5ct
18.08×9.04 mm
18.08×9.04 mm
5ct
18.72×9.36 mm
18.72×9.36 mm
5.5ct
19.32×9.66 mm
19.32×9.66 mm
6ct
19.9×9.95 mm
19.9×9.95 mm
6.5ct
20.44×10.22 mm
20.44×10.22 mm
7ct
20.94×10.47 mm
20.94×10.47 mm
7.5ct
21.44×10.72 mm
21.44×10.72 mm
8ct
21.9×10.95 mm
21.9×10.95 mm
8.5ct
22.34×11.17 mm
22.34×11.17 mm
9ct
22.78×11.39 mm
22.78×11.39 mm
9.5ct
23.2×11.6 mm
23.2×11.6 mm
10ct
23.6×11.8 mm
23.6×11.8 mm
11ct
24.36×12.18 mm
24.36×12.18 mm
12ct
25.06×12.53 mm
25.06×12.53 mm
13ct
25.74×12.87 mm
25.74×12.87 mm
14ct
26.4×13.2 mm
26.4×13.2 mm
15ct
27×13.5 mm
27×13.5 mm
16ct
27.6×13.8 mm
27.6×13.8 mm
17ct
28.16×14.08 mm
28.16×14.08 mm
18ct
28.7×14.35 mm
28.7×14.35 mm
19ct
29.22×14.61 mm
29.22×14.61 mm
20ct
29.72×14.86 mm
29.72×14.86 mm
22ct
30.68×15.34 mm
30.68×15.34 mm
24ct
31.58×15.79 mm
31.58×15.79 mm
26ct
32.44×16.22 mm
32.44×16.22 mm
28ct
33.26×16.63 mm
33.26×16.63 mm
30ct
34.02×17.01 mm
34.02×17.01 mm
33ct
35.12×17.56 mm
35.12×17.56 mm
36ct
36.16×18.08 mm
36.16×18.08 mm
40ct
37.44×18.72 mm
37.44×18.72 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 Morganite carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 6.9×3.45 mm |
| 0.5 ct | 8.7×4.35 mm |
| 0.75 ct | 9.94×4.97 mm |
| 1 ct | 10.96×5.48 mm |
| 1.25 ct | 11.8×5.9 mm |
| 1.5 ct | 12.54×6.27 mm |
| 1.75 ct | 13.2×6.6 mm |
| 2 ct | 13.8×6.9 mm |
| 2.5 ct | 14.86×7.43 mm |
| 3 ct | 15.8×7.9 mm |
| 3.5 ct | 16.62×8.31 mm |
| 4 ct | 17.38×8.69 mm |
| 4.5 ct | 18.08×9.04 mm |
| 5 ct | 18.72×9.36 mm |
| 5.5 ct | 19.32×9.66 mm |
| 6 ct | 19.9×9.95 mm |
| 6.5 ct | 20.44×10.22 mm |
| 7 ct | 20.94×10.47 mm |
| 7.5 ct | 21.44×10.72 mm |
| 8 ct | 21.9×10.95 mm |
| 8.5 ct | 22.34×11.17 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 22.78×11.39 mm |
| 9.5 ct | 23.2×11.6 mm |
| 10 ct | 23.6×11.8 mm |
| 11 ct | 24.36×12.18 mm |
| 12 ct | 25.06×12.53 mm |
| 13 ct | 25.74×12.87 mm |
| 14 ct | 26.4×13.2 mm |
| 15 ct | 27×13.5 mm |
| 16 ct | 27.6×13.8 mm |
| 17 ct | 28.16×14.08 mm |
| 18 ct | 28.7×14.35 mm |
| 19 ct | 29.22×14.61 mm |
| 20 ct | 29.72×14.86 mm |
| 22 ct | 30.68×15.34 mm |
| 24 ct | 31.58×15.79 mm |
| 26 ct | 32.44×16.22 mm |
| 28 ct | 33.26×16.63 mm |
| 30 ct | 34.02×17.01 mm |
| 33 ct | 35.12×17.56 mm |
| 36 ct | 36.16×18.08 mm |
| 40 ct | 37.44×18.72 mm |