Ci dessous des tableaux référençant les dimensions en mm, les carats et les pierres précieuses : saphir, émeraude, rubis et diamant.
Ronde (mm) |
(carats) Saphir |
(carats) Émeraude |
(carats) Rubis |
(carats) Diamant |
---|---|---|---|---|
1.0 | - | - | - | 0.005 |
2.0 | 0.04 | 0.03 | 0.04 | 0.03 |
2.5 | 0.08 | 0.06 | 0.08 | 0.05 |
3.0 | 0.15 | 0.10 | 0.15 | 0.11 |
3.5 | 0.22 | 0.15 | 0.22 | 0.16 |
4.0 | 0.34 | 0.22 | 0.34 | 0.23 |
4.5 | 0.45 | 0.32 | 0.45 | 0.36 |
5.0 | 0.66 | 0.45 | 0.66 | 0.45 |
5.5 | 0.83 | 0.57 | 0.83 | 0.64 |
6.0 | 1.09 | 0.72 | 1.09 | 0.8 |
6.5 | 1.36 | 0.95 | 1.36 | 1.0 |
7.0 | 1.64 | 1.10 | 1.64 | 1.25 |
7.5 | 2.12 | 1.40 | 2.12 | 1.6 |
8.0 | 2.50 | 1.75 | 2.50 | 1.9 |
Carré (mm) |
(carats) Saphir |
(carats) Émeraude |
(carats) Rubis |
(carats) Diamant |
2x2 | 0.06 | 0.04 | 0.06 | 0.05 |
3x3 | 0.22 | 0.12 | 0.22 | 0.18 |
4x4 | 0.56 | 0.28 | 0.56 | 0.4 |
5x5 | 0.80 | 0.50 | 0.80 | 0.75 |
Ovale (mm) |
(carats) Saphir |
(carats) Émeraude |
(carats) Rubis |
(carats) Diamant |
5x3 | 0.29 | 0.20 | 0.29 | 0.25 |
6x4 | 0.59 | 0.40 | 0.59 | 0.5 |
7x5 | 1.06 | 0.66 | 1.06 | 0.75 |
8x6 | 1.65 | 1.13 | 1.65 | 1.25 |
9x7 | 2.36 | 1.60 | 2.36 | 1.75 |
10x8 | 3.50 | 2.40 | 3.50 | 3.00 |
11x9 | 4.90 | 3.40 | 4.90 | 4.00 |
12x10 | 6.80 | 4.10 | 6.80 | 5.00 |
Marquise (mm) |
(carats) Saphir |
(carats) Émeraude |
(carats) Rubis |
(carats) Diamant |
4x2 | 0.12 | 0.08 | 0.12 | - |
4.5x2.5 | 0.15 | 0.10 | 0.15 | - |
5x2.5 | 0.20 | 0.12 | 0.20 | - |
5x3 | 0.24 | 0.16 | 0.24 | - |
6x3 | 0.29 | 0.21 | 0.29 | - |
7x3.5 | 0.45 | 0.32 | 0.45 | - |
8x4 | 0.75 | 0.50 | 0.75 | 0.50 |
9x4.5 | 1.00 | 0.65 | 1.00 | 0.75 |
10x5 | 1.30 | 0.95 | 1.30 | 1.25 |
12x6 | 2.06 | 1.50 | 2.06 | 2.00 |