Country-of-Origin services at the AGL
An origin determination may be requested for an additional charge (see Fee Schedule here). However we do not perform origin testing on all gem materials.
Once the service of an origin determination has been requested, the additional work/testing is performed. Two conclusions may be issued at the end of this testing:
- A geographic location/origin is indicated
- The geographic location/origin of the stone in question is currently not determinable
In either case, the fee for the origin work is charged. The cost of this service is based on the work that is put in and not on the result that is given.
List of gem varieties where an origin determination may be requested:
Standard: We provide an origin determination on the following gem varieties/materials:
- Sapphire (all colors)
- Paraiba/Paraiba-type tourmaline
- Demantoid Garnet
- Pink to Red Spinel
- Cobalt Spinel
Occasional: We provide an origin determination on the following gem varieties/materials:
- Cats-Eye Chrysoberyl
- Spinel (colors other than pink to red and cobalt)
- Hiddenite Spodumene
Those occurring from only one location: Some gem varieties/materials are only known from one source. As a result, we indicate the origin without an additional charge.
- Tanzanite (Tanzania)
- Benitoite (USA – California)
- Red Beryl (Bixbite: USA - Utah)
- Tsavorite (East Africa)
- Pezzottaite (Madagascar)