Other links at |
1. |
European Gemological Laboratory USA
|
|
Provides diamond, colored stone and pearls certification, analysis and consultations for the jewelry trade. Produces educational and promotional materials.
|
3. |
GemResearch Swisslab
|
|
Determination of the authenticity and country of origin of a rubies and sapphires. Offers gemstone reports and inscriptions.
|
4. |
GIA Gem Trade Laboratory
|
|
Provides grading and identification of diamonds, colored stones or pearls for the industry and consumers.
|
|
|