Oval-cut Zircon Size Chart
Carat to mm size chart for oval-cut Zircon, 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:
Zircon Size Chart (Oval Cut)
0.25ct
4.58×3.05 mm
4.58×3.05 mm
0.5ct
5.76×3.84 mm
5.76×3.84 mm
0.75ct
6.6×4.4 mm
6.6×4.4 mm
1ct
7.26×4.84 mm
7.26×4.84 mm
1.25ct
7.83×5.22 mm
7.83×5.22 mm
1.5ct
8.31×5.54 mm
8.31×5.54 mm
1.75ct
8.76×5.84 mm
8.76×5.84 mm
2ct
9.15×6.1 mm
9.15×6.1 mm
2.5ct
9.86×6.57 mm
9.86×6.57 mm
3ct
10.49×6.99 mm
10.49×6.99 mm
3.5ct
11.03×7.35 mm
11.03×7.35 mm
4ct
11.54×7.69 mm
11.54×7.69 mm
4.5ct
12×8 mm
12×8 mm
5ct
12.42×8.28 mm
12.42×8.28 mm
5.5ct
12.83×8.55 mm
12.83×8.55 mm
6ct
13.2×8.8 mm
13.2×8.8 mm
6.5ct
13.56×9.04 mm
13.56×9.04 mm
7ct
13.91×9.27 mm
13.91×9.27 mm
7.5ct
14.22×9.48 mm
14.22×9.48 mm
8ct
14.54×9.69 mm
14.54×9.69 mm
8.5ct
14.84×9.89 mm
14.84×9.89 mm
9ct
15.12×10.08 mm
15.12×10.08 mm
9.5ct
15.39×10.26 mm
15.39×10.26 mm
10ct
15.66×10.44 mm
15.66×10.44 mm
11ct
16.16×10.77 mm
16.16×10.77 mm
12ct
16.64×11.09 mm
16.64×11.09 mm
13ct
17.09×11.39 mm
17.09×11.39 mm
14ct
17.51×11.67 mm
17.51×11.67 mm
15ct
17.93×11.95 mm
17.93×11.95 mm
16ct
18.32×12.21 mm
18.32×12.21 mm
17ct
18.69×12.46 mm
18.69×12.46 mm
18ct
19.04×12.69 mm
19.04×12.69 mm
19ct
19.4×12.93 mm
19.4×12.93 mm
20ct
19.73×13.15 mm
19.73×13.15 mm
22ct
20.36×13.57 mm
20.36×13.57 mm
24ct
20.96×13.97 mm
20.96×13.97 mm
26ct
21.53×14.35 mm
21.53×14.35 mm
28ct
22.07×14.71 mm
22.07×14.71 mm
30ct
22.58×15.05 mm
22.58×15.05 mm
33ct
23.31×15.54 mm
23.31×15.54 mm
36ct
23.99×15.99 mm
23.99×15.99 mm
40ct
24.86×16.57 mm
24.86×16.57 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 Zircon carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 4.58×3.05 mm |
| 0.5 ct | 5.76×3.84 mm |
| 0.75 ct | 6.6×4.4 mm |
| 1 ct | 7.26×4.84 mm |
| 1.25 ct | 7.83×5.22 mm |
| 1.5 ct | 8.31×5.54 mm |
| 1.75 ct | 8.76×5.84 mm |
| 2 ct | 9.15×6.1 mm |
| 2.5 ct | 9.86×6.57 mm |
| 3 ct | 10.49×6.99 mm |
| 3.5 ct | 11.03×7.35 mm |
| 4 ct | 11.54×7.69 mm |
| 4.5 ct | 12×8 mm |
| 5 ct | 12.42×8.28 mm |
| 5.5 ct | 12.83×8.55 mm |
| 6 ct | 13.2×8.8 mm |
| 6.5 ct | 13.56×9.04 mm |
| 7 ct | 13.91×9.27 mm |
| 7.5 ct | 14.22×9.48 mm |
| 8 ct | 14.54×9.69 mm |
| 8.5 ct | 14.84×9.89 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 15.12×10.08 mm |
| 9.5 ct | 15.39×10.26 mm |
| 10 ct | 15.66×10.44 mm |
| 11 ct | 16.16×10.77 mm |
| 12 ct | 16.64×11.09 mm |
| 13 ct | 17.09×11.39 mm |
| 14 ct | 17.51×11.67 mm |
| 15 ct | 17.93×11.95 mm |
| 16 ct | 18.32×12.21 mm |
| 17 ct | 18.69×12.46 mm |
| 18 ct | 19.04×12.69 mm |
| 19 ct | 19.4×12.93 mm |
| 20 ct | 19.73×13.15 mm |
| 22 ct | 20.36×13.57 mm |
| 24 ct | 20.96×13.97 mm |
| 26 ct | 21.53×14.35 mm |
| 28 ct | 22.07×14.71 mm |
| 30 ct | 22.58×15.05 mm |
| 33 ct | 23.31×15.54 mm |
| 36 ct | 23.99×15.99 mm |
| 40 ct | 24.86×16.57 mm |