|
|
|
|
| Average weight for faceted gems |
|
(mm) Oval
|
(carats) Sapphire
|
(carats) Emerald
|
(carats) Ruby
|
| 5x3 |
0.29 |
0.20 |
0.29 |
| 6x4 |
0.59 |
0.40 |
0.59 |
| 7x5 |
1.06 |
0.66 |
1.06 |
| 8x6 |
1.65 |
1.13 |
1.65 |
| 9x7 |
2.36 |
1.60 |
2.36 |
| 10x8 |
3.50 |
2.40 |
3.50 |
| 11x9 |
4.90 |
3.40 |
4.90 |
| 12x10 |
6.80 |
4.10 |
6.80 |
|
(mm) Round
|
(carats) Sapphire
|
(carats) Emerald
|
(carats) Ruby
|
| 2.0 |
0.04 |
0.03 |
0.04 |
| 2.5 |
0.08 |
0.06 |
0.08 |
| 3.0 |
0.15 |
0.10 |
0.15 |
| 3.5 |
0.22 |
0.15 |
0.22 |
| 4.0 |
0.34 |
0.22 |
0.34 |
| 4.5 |
0.45 |
0.32 |
0.45 |
| 5.0 |
0.66 |
0.45 |
0.66 |
| 5.5 |
0.83 |
0.57 |
0.83 |
| 6.0 |
1.09 |
0.72 |
1.09 |
| 6.5 |
1.36 |
0.95 |
1.36 |
| 7.0 |
1.64 |
1.10 |
1.64 |
| 7.5 |
2.12 |
1.40 |
2.12 |
| 8.0 |
2.50 |
1.75 |
2.50 |
|
(mm) Square
|
(carats) Sapphire
|
(carats) Emerald
|
(carats) Ruby
|
| 2x2 |
0.06 |
0.04 |
0.06 |
| 3x3 |
0.22 |
0.12 |
0.22 |
| 4x4 |
0.56 |
0.28 |
0.56 |
| 5x5 |
0.80 |
0.50 |
0.80 |
|
(mm)Octagon
|
(carats) Sapphire
|
(carats) Emerald
|
(carats) Ruby
|
| 5x3 |
0.35 |
0.25 |
0.35 |
| 6x4 |
0.70 |
0.48 |
0.70 |
| 7x5 |
1.30 |
0.87 |
1.30 |
| 8x6 |
2.00 |
1.35 |
2.00 |
| 9x7 |
3.10 |
2.16 |
3.10 |
| 10x8 |
4.40 |
3.00 |
4.40 |
| 11x9 |
6.18 |
4.00 |
6.18 |
| 12x10 |
8.30 |
5.10 |
8.30 |
|
(mm)Marquise
|
(carats) Sapphire
|
(carats) Emerald
|
(carats) Ruby
|
| 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 |
| 9x4.5 |
1.00 |
0.65 |
1.00 |
| 10x5 |
1.30 |
0.95 |
1.30 |
| 12x6 |
2.06 |
1.50 |
2.06 |
|
