
Garnet refers to a family of minerals from the nesosilicate group crystallizing in the cubic crystal system. Gem quality garnets are fine stones.
Used alone, the term garnet is synonymous with pyrope-almandine.
Garnets are formed from three silicate groups associated with metal cations, of general formula X32+Y23+[SiO4]3, where X and Y are charged ions with 2 and 3 positive charges respectively.
The structure consists of a three-dimensional network of octahedrons and tetrahedra which share vertices: in the space between these polyhedra we find cavities in the shape of a triangular dodecahedron, in which the 8-coordinated bivalent cations are placed. These cavities can be described as tetragonal antiprisms deformed in such a way that the vertices are no longer coplanar.
Depending on the presence or absence of calcium, two groups of garnets are distinguished:
calcic garnets or ougrandites (OUvarovite GRossular ANDradite);
aluminous garnets, or pyralspites (PYRope ALmandin SPessartite).
Ti occurs up to 1% in almandine and 5% in melanites, black varieties of andradite (we can even reach 20% Ti). Yttrium can be used in other garnets such as spessartines which can contain up to 5% Y2O3 or Zn.
Garnets are used in jewelry to make various jewelry.
Stones calibrated for jewelry at +/- 0.05 mm.
Average weight: 5 x 3 mm (0.29 cts) - 6 x 4 mm (0.55 cts) - 7 x 5 mm (0.96 cts) - 8 x 6 mm (1.66 cts) - 9 x 7 mm (3.20 cts) - 10 x 8 mm (2.90 cts) -
Comes with certificate of authenticity
Very beautiful red color without inclusions.
| Dominant color | Red |
| Average Weight (Carats) | 0.29- 2.90 cents |
| Shape | Oval |
| Clarity | IF |
| Stone type | Garnet |
| Origin | Africa |
| Hardness | 6-7.5 |
| Density | 3.5-4.3 |
| Refractive index | 1.72-1.94 |
| Treatment | Unheated |
| Certificate of Authenticity | A Jewelry |
| Audience | Mixed |
| Brand | A Jewelry |
| Ref | TMPL_SKU005415 |
Right of withdrawal: In accordance with the provisions of articles L. 120-20 et seq. of the Consumer Code, consumers have a right of withdrawal. Only products returned as a whole, in their complete original packaging and in perfect condition, may be subject to a right of withdrawal. The consumer may request a credit on the sums paid, an exchange of the product or a refund of the sums paid. In such a case, A BIJOUX must, within THIRTY DAYS of exercising the right of withdrawal, credit the consumer with a credit or reimburse the sums paid. Returns / Exchanges: - Before any return, please obtain agreement by email, in order to process the return in the best conditions. - An item can be returned to us within 15 days of dispatch (postmark taken as proof) provided that it has not been worn and is returned in its original packaging. - Round-trip postal costs caused by a return are the responsibility of A Bijoux after the customer's request. - We will exchange the item for another model. - A refund will be possible IN THE FORM OF A CREDIT.
