Oval-cut Sinhalite Size Chart
Carat to mm size chart for oval-cut Sinhalite, 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:
Sinhalite Size Chart (Oval Cut)
0.25ct
5.06×3.37 mm
5.06×3.37 mm
0.5ct
6.38×4.25 mm
6.38×4.25 mm
0.75ct
7.29×4.86 mm
7.29×4.86 mm
1ct
8.03×5.35 mm
8.03×5.35 mm
1.25ct
8.66×5.77 mm
8.66×5.77 mm
1.5ct
9.2×6.13 mm
9.2×6.13 mm
1.75ct
9.68×6.45 mm
9.68×6.45 mm
2ct
10.13×6.75 mm
10.13×6.75 mm
2.5ct
10.91×7.27 mm
10.91×7.27 mm
3ct
11.58×7.72 mm
11.58×7.72 mm
3.5ct
12.2×8.13 mm
12.2×8.13 mm
4ct
12.75×8.5 mm
12.75×8.5 mm
4.5ct
13.26×8.84 mm
13.26×8.84 mm
5ct
13.74×9.16 mm
13.74×9.16 mm
5.5ct
14.18×9.45 mm
14.18×9.45 mm
6ct
14.6×9.73 mm
14.6×9.73 mm
6.5ct
14.99×9.99 mm
14.99×9.99 mm
7ct
15.36×10.24 mm
15.36×10.24 mm
7.5ct
15.72×10.48 mm
15.72×10.48 mm
8ct
16.07×10.71 mm
16.07×10.71 mm
8.5ct
16.4×10.93 mm
16.4×10.93 mm
9ct
16.71×11.14 mm
16.71×11.14 mm
9.5ct
17.01×11.34 mm
17.01×11.34 mm
10ct
17.31×11.54 mm
17.31×11.54 mm
11ct
17.87×11.91 mm
17.87×11.91 mm
12ct
18.39×12.26 mm
18.39×12.26 mm
13ct
18.89×12.59 mm
18.89×12.59 mm
14ct
19.35×12.9 mm
19.35×12.9 mm
15ct
19.8×13.2 mm
19.8×13.2 mm
16ct
20.24×13.49 mm
20.24×13.49 mm
17ct
20.66×13.77 mm
20.66×13.77 mm
18ct
21.05×14.03 mm
21.05×14.03 mm
19ct
21.44×14.29 mm
21.44×14.29 mm
20ct
21.8×14.53 mm
21.8×14.53 mm
22ct
22.5×15 mm
22.5×15 mm
24ct
23.16×15.44 mm
23.16×15.44 mm
26ct
23.79×15.86 mm
23.79×15.86 mm
28ct
24.39×16.26 mm
24.39×16.26 mm
30ct
24.96×16.64 mm
24.96×16.64 mm
33ct
25.76×17.17 mm
25.76×17.17 mm
36ct
26.52×17.68 mm
26.52×17.68 mm
40ct
27.47×18.31 mm
27.47×18.31 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 oval-cut Sinhalite carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 5.06×3.37 mm |
| 0.5 ct | 6.38×4.25 mm |
| 0.75 ct | 7.29×4.86 mm |
| 1 ct | 8.03×5.35 mm |
| 1.25 ct | 8.66×5.77 mm |
| 1.5 ct | 9.2×6.13 mm |
| 1.75 ct | 9.68×6.45 mm |
| 2 ct | 10.13×6.75 mm |
| 2.5 ct | 10.91×7.27 mm |
| 3 ct | 11.58×7.72 mm |
| 3.5 ct | 12.2×8.13 mm |
| 4 ct | 12.75×8.5 mm |
| 4.5 ct | 13.26×8.84 mm |
| 5 ct | 13.74×9.16 mm |
| 5.5 ct | 14.18×9.45 mm |
| 6 ct | 14.6×9.73 mm |
| 6.5 ct | 14.99×9.99 mm |
| 7 ct | 15.36×10.24 mm |
| 7.5 ct | 15.72×10.48 mm |
| 8 ct | 16.07×10.71 mm |
| 8.5 ct | 16.4×10.93 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 16.71×11.14 mm |
| 9.5 ct | 17.01×11.34 mm |
| 10 ct | 17.31×11.54 mm |
| 11 ct | 17.87×11.91 mm |
| 12 ct | 18.39×12.26 mm |
| 13 ct | 18.89×12.59 mm |
| 14 ct | 19.35×12.9 mm |
| 15 ct | 19.8×13.2 mm |
| 16 ct | 20.24×13.49 mm |
| 17 ct | 20.66×13.77 mm |
| 18 ct | 21.05×14.03 mm |
| 19 ct | 21.44×14.29 mm |
| 20 ct | 21.8×14.53 mm |
| 22 ct | 22.5×15 mm |
| 24 ct | 23.16×15.44 mm |
| 26 ct | 23.79×15.86 mm |
| 28 ct | 24.39×16.26 mm |
| 30 ct | 24.96×16.64 mm |
| 33 ct | 25.76×17.17 mm |
| 36 ct | 26.52×17.68 mm |
| 40 ct | 27.47×18.31 mm |