We offer a wide choice of 1 to 10 or more carats gemstones, as explained below. Please see the following sections for descriptions and pictures of the stones with which we work (taken from the book “De la beauté des pierres précieuses”). Please contact us for any specific demand.
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,570 - 1,599 |
7,58 à 8 |
2,67 - 2,71 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,746 - 1,755 |
8,5 |
3,70 – 3,75 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 2.417 |
10 |
3.51 – 3.53 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,566 – 1,596 |
7,5 à 8 |
2,65 – 2,85 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,734 – 1,888 |
6,5 à 8 |
3,75 – 4,00 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,440 – 1,460 |
5,5 à 6,5 |
1,98 – 2,10 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,654 – 1,705 |
6,5 à 7,0 |
3,27 – 3,37 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,760 - 1,768 |
9 |
3,97 – 4,05 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,760 - 1,768 |
9 |
3,97 – 4,05 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,712 - 1,736 |
8 |
3,58 – 3,61 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,692 – 1,706 |
6 |
3.15 - 3.38 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,606 – 1,638 |
8 |
3,53 – 3,56 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,610 – 1,735 |
7 – 7,5 |
3,02 – 3,26 |
| Properties |
| Refractive index |
Hardness (out of 10) |
Density |
| 1,925 – 2,020 |
7,5 |
4,5 – 5,0 |