Cabochon-cut Beryl Size Chart
Carat to mm size chart for cabochon-cut Beryl, 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:
Beryl Size Chart (Cabochon Cut)
0.25ct
4.91×3.27 mm
4.91×3.27 mm
0.5ct
6.18×4.12 mm
6.18×4.12 mm
0.75ct
7.07×4.71 mm
7.07×4.71 mm
1ct
7.79×5.19 mm
7.79×5.19 mm
1.25ct
8.39×5.59 mm
8.39×5.59 mm
1.5ct
8.91×5.94 mm
8.91×5.94 mm
1.75ct
9.38×6.25 mm
9.38×6.25 mm
2ct
9.81×6.54 mm
9.81×6.54 mm
2.5ct
10.56×7.04 mm
10.56×7.04 mm
3ct
11.22×7.48 mm
11.22×7.48 mm
3.5ct
11.82×7.88 mm
11.82×7.88 mm
4ct
12.36×8.24 mm
12.36×8.24 mm
4.5ct
12.86×8.57 mm
12.86×8.57 mm
5ct
13.31×8.87 mm
13.31×8.87 mm
5.5ct
13.74×9.16 mm
13.74×9.16 mm
6ct
14.15×9.43 mm
14.15×9.43 mm
6.5ct
14.52×9.68 mm
14.52×9.68 mm
7ct
14.88×9.92 mm
14.88×9.92 mm
7.5ct
15.24×10.16 mm
15.24×10.16 mm
8ct
15.57×10.38 mm
15.57×10.38 mm
8.5ct
15.89×10.59 mm
15.89×10.59 mm
9ct
16.19×10.79 mm
16.19×10.79 mm
9.5ct
16.49×10.99 mm
16.49×10.99 mm
10ct
16.77×11.18 mm
16.77×11.18 mm
11ct
17.31×11.54 mm
17.31×11.54 mm
12ct
17.82×11.88 mm
17.82×11.88 mm
13ct
18.3×12.2 mm
18.3×12.2 mm
14ct
18.75×12.5 mm
18.75×12.5 mm
15ct
19.2×12.8 mm
19.2×12.8 mm
16ct
19.61×13.07 mm
19.61×13.07 mm
17ct
20.01×13.34 mm
20.01×13.34 mm
18ct
20.4×13.6 mm
20.4×13.6 mm
19ct
20.76×13.84 mm
20.76×13.84 mm
20ct
21.12×14.08 mm
21.12×14.08 mm
22ct
21.81×14.54 mm
21.81×14.54 mm
24ct
22.46×14.97 mm
22.46×14.97 mm
26ct
23.06×15.37 mm
23.06×15.37 mm
28ct
23.63×15.75 mm
23.63×15.75 mm
30ct
24.18×16.12 mm
24.18×16.12 mm
33ct
24.96×16.64 mm
24.96×16.64 mm
36ct
25.7×17.13 mm
25.7×17.13 mm
40ct
26.61×17.74 mm
26.61×17.74 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 Beryl carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 4.91×3.27 mm |
| 0.5 ct | 6.18×4.12 mm |
| 0.75 ct | 7.07×4.71 mm |
| 1 ct | 7.79×5.19 mm |
| 1.25 ct | 8.39×5.59 mm |
| 1.5 ct | 8.91×5.94 mm |
| 1.75 ct | 9.38×6.25 mm |
| 2 ct | 9.81×6.54 mm |
| 2.5 ct | 10.56×7.04 mm |
| 3 ct | 11.22×7.48 mm |
| 3.5 ct | 11.82×7.88 mm |
| 4 ct | 12.36×8.24 mm |
| 4.5 ct | 12.86×8.57 mm |
| 5 ct | 13.31×8.87 mm |
| 5.5 ct | 13.74×9.16 mm |
| 6 ct | 14.15×9.43 mm |
| 6.5 ct | 14.52×9.68 mm |
| 7 ct | 14.88×9.92 mm |
| 7.5 ct | 15.24×10.16 mm |
| 8 ct | 15.57×10.38 mm |
| 8.5 ct | 15.89×10.59 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 16.19×10.79 mm |
| 9.5 ct | 16.49×10.99 mm |
| 10 ct | 16.77×11.18 mm |
| 11 ct | 17.31×11.54 mm |
| 12 ct | 17.82×11.88 mm |
| 13 ct | 18.3×12.2 mm |
| 14 ct | 18.75×12.5 mm |
| 15 ct | 19.2×12.8 mm |
| 16 ct | 19.61×13.07 mm |
| 17 ct | 20.01×13.34 mm |
| 18 ct | 20.4×13.6 mm |
| 19 ct | 20.76×13.84 mm |
| 20 ct | 21.12×14.08 mm |
| 22 ct | 21.81×14.54 mm |
| 24 ct | 22.46×14.97 mm |
| 26 ct | 23.06×15.37 mm |
| 28 ct | 23.63×15.75 mm |
| 30 ct | 24.18×16.12 mm |
| 33 ct | 24.96×16.64 mm |
| 36 ct | 25.7×17.13 mm |
| 40 ct | 26.61×17.74 mm |