

Groupe AGS was founded in 1971 and is based in Paris, France.
Groupe AGS provides products for laser and water-jet cutting, welding, machining, metal sheet, electro-discharge machining, painting, assembly, and the integration of sub-contractor operations. The company specializes in high-speed machines, wire electro-erosion, and electro-sinking; and offers solutions regarding laser cut and 2D/3D water jet laser cut. It serves aeronautical and space, armament, railway, research, energy, automotive, spatial, medical, electro-mechanical, and other industries.
Groupe AGS is ISO certified and has several international security clearances.
Established in 1931, GIA is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.
GIA is the world’s most trusted name in diamond grading and gem identification. With objectivity and expertise as its hallmarks, GIA ensures the integrity and accuracy of every report it issues. GIA tests every material submitted to determine whether it is natural or not, and discloses any treatments discovered during our examination.
The Gübelin Gem Lab was founded in 1923 as a small gemological laboratory to examine and determine the authenticity of the stones used in Gübelin’s jewelry. This was a way to maintain the trust of its clients and stay true to its ideals. Since then the Gübelin Gem Lab has grown to become one of the most respected institutions of its kind in the world.
A completely independent subsidiary of the Gübelin Group, the Gübelin Gem Lab uses the latest science and state-of-the-art equipment to carry out its analyses. On the basis of this, it issues its highly respected Gemmological Reports, which are relied upon by famous auction houses, royal families, jewelers, gem traders, and collectors globally who are looking for unbiased, independent and absolutely trustworthy opinions about their gems.