Pear-cut Tanzanite Size Chart
Carat to mm size chart for pear-cut Tanzanite, from 0.25ct to 40ct (at an L/W ratio of 1.66). 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:
Tanzanite Size Chart (Pear Cut)
0.25ct
5.68×3.42 mm
5.68×3.42 mm
0.5ct
7.15×4.31 mm
7.15×4.31 mm
0.75ct
8.2×4.94 mm
8.2×4.94 mm
1ct
9.03×5.44 mm
9.03×5.44 mm
1.25ct
9.71×5.85 mm
9.71×5.85 mm
1.5ct
10.33×6.22 mm
10.33×6.22 mm
1.75ct
10.87×6.55 mm
10.87×6.55 mm
2ct
11.37×6.85 mm
11.37×6.85 mm
2.5ct
12.25×7.38 mm
12.25×7.38 mm
3ct
13.01×7.84 mm
13.01×7.84 mm
3.5ct
13.7×8.25 mm
13.7×8.25 mm
4ct
14.33×8.63 mm
14.33×8.63 mm
4.5ct
14.89×8.97 mm
14.89×8.97 mm
5ct
15.42×9.29 mm
15.42×9.29 mm
5.5ct
15.92×9.59 mm
15.92×9.59 mm
6ct
16.4×9.88 mm
16.4×9.88 mm
6.5ct
16.83×10.14 mm
16.83×10.14 mm
7ct
17.26×10.4 mm
17.26×10.4 mm
7.5ct
17.66×10.64 mm
17.66×10.64 mm
8ct
18.04×10.87 mm
18.04×10.87 mm
8.5ct
18.41×11.09 mm
18.41×11.09 mm
9ct
18.77×11.31 mm
18.77×11.31 mm
9.5ct
19.11×11.51 mm
19.11×11.51 mm
10ct
19.44×11.71 mm
19.44×11.71 mm
11ct
20.07×12.09 mm
20.07×12.09 mm
12ct
20.65×12.44 mm
20.65×12.44 mm
13ct
21.21×12.78 mm
21.21×12.78 mm
14ct
21.75×13.1 mm
21.75×13.1 mm
15ct
22.24×13.4 mm
22.24×13.4 mm
16ct
22.74×13.7 mm
22.74×13.7 mm
17ct
23.21×13.98 mm
23.21×13.98 mm
18ct
23.64×14.24 mm
23.64×14.24 mm
19ct
24.07×14.5 mm
24.07×14.5 mm
20ct
24.49×14.75 mm
24.49×14.75 mm
22ct
25.28×15.23 mm
25.28×15.23 mm
24ct
26.03×15.68 mm
26.03×15.68 mm
26ct
26.73×16.1 mm
26.73×16.1 mm
28ct
27.39×16.5 mm
27.39×16.5 mm
30ct
28.04×16.89 mm
28.04×16.89 mm
33ct
28.93×17.43 mm
28.93×17.43 mm
36ct
29.8×17.95 mm
29.8×17.95 mm
40ct
30.86×18.59 mm
30.86×18.59 mm
Length-to-width ratio: 1.66, 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 pear-cut Tanzanite carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 5.68×3.42 mm |
| 0.5 ct | 7.15×4.31 mm |
| 0.75 ct | 8.2×4.94 mm |
| 1 ct | 9.03×5.44 mm |
| 1.25 ct | 9.71×5.85 mm |
| 1.5 ct | 10.33×6.22 mm |
| 1.75 ct | 10.87×6.55 mm |
| 2 ct | 11.37×6.85 mm |
| 2.5 ct | 12.25×7.38 mm |
| 3 ct | 13.01×7.84 mm |
| 3.5 ct | 13.7×8.25 mm |
| 4 ct | 14.33×8.63 mm |
| 4.5 ct | 14.89×8.97 mm |
| 5 ct | 15.42×9.29 mm |
| 5.5 ct | 15.92×9.59 mm |
| 6 ct | 16.4×9.88 mm |
| 6.5 ct | 16.83×10.14 mm |
| 7 ct | 17.26×10.4 mm |
| 7.5 ct | 17.66×10.64 mm |
| 8 ct | 18.04×10.87 mm |
| 8.5 ct | 18.41×11.09 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 18.77×11.31 mm |
| 9.5 ct | 19.11×11.51 mm |
| 10 ct | 19.44×11.71 mm |
| 11 ct | 20.07×12.09 mm |
| 12 ct | 20.65×12.44 mm |
| 13 ct | 21.21×12.78 mm |
| 14 ct | 21.75×13.1 mm |
| 15 ct | 22.24×13.4 mm |
| 16 ct | 22.74×13.7 mm |
| 17 ct | 23.21×13.98 mm |
| 18 ct | 23.64×14.24 mm |
| 19 ct | 24.07×14.5 mm |
| 20 ct | 24.49×14.75 mm |
| 22 ct | 25.28×15.23 mm |
| 24 ct | 26.03×15.68 mm |
| 26 ct | 26.73×16.1 mm |
| 28 ct | 27.39×16.5 mm |
| 30 ct | 28.04×16.89 mm |
| 33 ct | 28.93×17.43 mm |
| 36 ct | 29.8×17.95 mm |
| 40 ct | 30.86×18.59 mm |