Oval-cut Apatite Size Chart
Carat to mm size chart for oval-cut Apatite, 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:
Apatite Size Chart (Oval Cut)
0.25ct
5.21×3.47 mm
5.21×3.47 mm
0.5ct
6.56×4.37 mm
6.56×4.37 mm
0.75ct
7.5×5 mm
7.5×5 mm
1ct
8.27×5.51 mm
8.27×5.51 mm
1.25ct
8.9×5.93 mm
8.9×5.93 mm
1.5ct
9.45×6.3 mm
9.45×6.3 mm
1.75ct
9.96×6.64 mm
9.96×6.64 mm
2ct
10.41×6.94 mm
10.41×6.94 mm
2.5ct
11.21×7.47 mm
11.21×7.47 mm
3ct
11.91×7.94 mm
11.91×7.94 mm
3.5ct
12.54×8.36 mm
12.54×8.36 mm
4ct
13.11×8.74 mm
13.11×8.74 mm
4.5ct
13.64×9.09 mm
13.64×9.09 mm
5ct
14.13×9.42 mm
14.13×9.42 mm
5.5ct
14.58×9.72 mm
14.58×9.72 mm
6ct
15.02×10.01 mm
15.02×10.01 mm
6.5ct
15.42×10.28 mm
15.42×10.28 mm
7ct
15.8×10.53 mm
15.8×10.53 mm
7.5ct
16.17×10.78 mm
16.17×10.78 mm
8ct
16.52×11.01 mm
16.52×11.01 mm
8.5ct
16.86×11.24 mm
16.86×11.24 mm
9ct
17.18×11.45 mm
17.18×11.45 mm
9.5ct
17.49×11.66 mm
17.49×11.66 mm
10ct
17.79×11.86 mm
17.79×11.86 mm
11ct
18.38×12.25 mm
18.38×12.25 mm
12ct
18.92×12.61 mm
18.92×12.61 mm
13ct
19.43×12.95 mm
19.43×12.95 mm
14ct
19.91×13.27 mm
19.91×13.27 mm
15ct
20.37×13.58 mm
20.37×13.58 mm
16ct
20.81×13.87 mm
20.81×13.87 mm
17ct
21.24×14.16 mm
21.24×14.16 mm
18ct
21.65×14.43 mm
21.65×14.43 mm
19ct
22.04×14.69 mm
22.04×14.69 mm
20ct
22.43×14.95 mm
22.43×14.95 mm
22ct
23.15×15.43 mm
23.15×15.43 mm
24ct
23.82×15.88 mm
23.82×15.88 mm
26ct
24.47×16.31 mm
24.47×16.31 mm
28ct
25.08×16.72 mm
25.08×16.72 mm
30ct
25.67×17.11 mm
25.67×17.11 mm
33ct
26.49×17.66 mm
26.49×17.66 mm
36ct
27.27×18.18 mm
27.27×18.18 mm
40ct
28.25×18.83 mm
28.25×18.83 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 Apatite carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 5.21×3.47 mm |
| 0.5 ct | 6.56×4.37 mm |
| 0.75 ct | 7.5×5 mm |
| 1 ct | 8.27×5.51 mm |
| 1.25 ct | 8.9×5.93 mm |
| 1.5 ct | 9.45×6.3 mm |
| 1.75 ct | 9.96×6.64 mm |
| 2 ct | 10.41×6.94 mm |
| 2.5 ct | 11.21×7.47 mm |
| 3 ct | 11.91×7.94 mm |
| 3.5 ct | 12.54×8.36 mm |
| 4 ct | 13.11×8.74 mm |
| 4.5 ct | 13.64×9.09 mm |
| 5 ct | 14.13×9.42 mm |
| 5.5 ct | 14.58×9.72 mm |
| 6 ct | 15.02×10.01 mm |
| 6.5 ct | 15.42×10.28 mm |
| 7 ct | 15.8×10.53 mm |
| 7.5 ct | 16.17×10.78 mm |
| 8 ct | 16.52×11.01 mm |
| 8.5 ct | 16.86×11.24 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 17.18×11.45 mm |
| 9.5 ct | 17.49×11.66 mm |
| 10 ct | 17.79×11.86 mm |
| 11 ct | 18.38×12.25 mm |
| 12 ct | 18.92×12.61 mm |
| 13 ct | 19.43×12.95 mm |
| 14 ct | 19.91×13.27 mm |
| 15 ct | 20.37×13.58 mm |
| 16 ct | 20.81×13.87 mm |
| 17 ct | 21.24×14.16 mm |
| 18 ct | 21.65×14.43 mm |
| 19 ct | 22.04×14.69 mm |
| 20 ct | 22.43×14.95 mm |
| 22 ct | 23.15×15.43 mm |
| 24 ct | 23.82×15.88 mm |
| 26 ct | 24.47×16.31 mm |
| 28 ct | 25.08×16.72 mm |
| 30 ct | 25.67×17.11 mm |
| 33 ct | 26.49×17.66 mm |
| 36 ct | 27.27×18.18 mm |
| 40 ct | 28.25×18.83 mm |