Baguette-cut Tanzanite Size Chart
Carat to mm size chart for baguette-cut Tanzanite, 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:
Tanzanite Size Chart (Baguette Cut)
0.25ct
4.64×3.09 mm
4.64×3.09 mm
0.5ct
5.84×3.89 mm
5.84×3.89 mm
0.75ct
6.68×4.45 mm
6.68×4.45 mm
1ct
7.35×4.9 mm
7.35×4.9 mm
1.25ct
7.92×5.28 mm
7.92×5.28 mm
1.5ct
8.42×5.61 mm
8.42×5.61 mm
1.75ct
8.87×5.91 mm
8.87×5.91 mm
2ct
9.27×6.18 mm
9.27×6.18 mm
2.5ct
9.98×6.65 mm
9.98×6.65 mm
3ct
10.61×7.07 mm
10.61×7.07 mm
3.5ct
11.16×7.44 mm
11.16×7.44 mm
4ct
11.67×7.78 mm
11.67×7.78 mm
4.5ct
12.14×8.09 mm
12.14×8.09 mm
5ct
12.57×8.38 mm
12.57×8.38 mm
5.5ct
12.98×8.65 mm
12.98×8.65 mm
6ct
13.37×8.91 mm
13.37×8.91 mm
6.5ct
13.73×9.15 mm
13.73×9.15 mm
7ct
14.07×9.38 mm
14.07×9.38 mm
7.5ct
14.39×9.59 mm
14.39×9.59 mm
8ct
14.7×9.8 mm
14.7×9.8 mm
8.5ct
15×10 mm
15×10 mm
9ct
15.3×10.2 mm
15.3×10.2 mm
9.5ct
15.57×10.38 mm
15.57×10.38 mm
10ct
15.84×10.56 mm
15.84×10.56 mm
11ct
16.35×10.9 mm
16.35×10.9 mm
12ct
16.83×11.22 mm
16.83×11.22 mm
13ct
17.28×11.52 mm
17.28×11.52 mm
14ct
17.72×11.81 mm
17.72×11.81 mm
15ct
18.14×12.09 mm
18.14×12.09 mm
16ct
18.53×12.35 mm
18.53×12.35 mm
17ct
18.9×12.6 mm
18.9×12.6 mm
18ct
19.28×12.85 mm
19.28×12.85 mm
19ct
19.62×13.08 mm
19.62×13.08 mm
20ct
19.95×13.3 mm
19.95×13.3 mm
22ct
20.6×13.73 mm
20.6×13.73 mm
24ct
21.21×14.14 mm
21.21×14.14 mm
26ct
21.78×14.52 mm
21.78×14.52 mm
28ct
22.32×14.88 mm
22.32×14.88 mm
30ct
22.85×15.23 mm
22.85×15.23 mm
33ct
23.58×15.72 mm
23.58×15.72 mm
36ct
24.27×16.18 mm
24.27×16.18 mm
40ct
25.14×16.76 mm
25.14×16.76 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 baguette-cut Tanzanite carat weights to their approximate millimeter (mm) sizes:
| Carat Weight | MM Size |
|---|---|
| 0.25 ct | 4.64×3.09 mm |
| 0.5 ct | 5.84×3.89 mm |
| 0.75 ct | 6.68×4.45 mm |
| 1 ct | 7.35×4.9 mm |
| 1.25 ct | 7.92×5.28 mm |
| 1.5 ct | 8.42×5.61 mm |
| 1.75 ct | 8.87×5.91 mm |
| 2 ct | 9.27×6.18 mm |
| 2.5 ct | 9.98×6.65 mm |
| 3 ct | 10.61×7.07 mm |
| 3.5 ct | 11.16×7.44 mm |
| 4 ct | 11.67×7.78 mm |
| 4.5 ct | 12.14×8.09 mm |
| 5 ct | 12.57×8.38 mm |
| 5.5 ct | 12.98×8.65 mm |
| 6 ct | 13.37×8.91 mm |
| 6.5 ct | 13.73×9.15 mm |
| 7 ct | 14.07×9.38 mm |
| 7.5 ct | 14.39×9.59 mm |
| 8 ct | 14.7×9.8 mm |
| 8.5 ct | 15×10 mm |
| Carat Weight | MM Size |
|---|---|
| 9 ct | 15.3×10.2 mm |
| 9.5 ct | 15.57×10.38 mm |
| 10 ct | 15.84×10.56 mm |
| 11 ct | 16.35×10.9 mm |
| 12 ct | 16.83×11.22 mm |
| 13 ct | 17.28×11.52 mm |
| 14 ct | 17.72×11.81 mm |
| 15 ct | 18.14×12.09 mm |
| 16 ct | 18.53×12.35 mm |
| 17 ct | 18.9×12.6 mm |
| 18 ct | 19.28×12.85 mm |
| 19 ct | 19.62×13.08 mm |
| 20 ct | 19.95×13.3 mm |
| 22 ct | 20.6×13.73 mm |
| 24 ct | 21.21×14.14 mm |
| 26 ct | 21.78×14.52 mm |
| 28 ct | 22.32×14.88 mm |
| 30 ct | 22.85×15.23 mm |
| 33 ct | 23.58×15.72 mm |
| 36 ct | 24.27×16.18 mm |
| 40 ct | 25.14×16.76 mm |