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The American Gemological Laboratory is one of the world’s most prestigious Gemological Laboratories. Owned and operated by one of the world’s most respected and honored gemologists, Christopher Smith. The colored gemstone reports from AGL with Christopher’s signature are relied upon by the world’s most prestigious jewelry firms and auction houses. Gems of great fame and fortune are confidently bought and sold after undergoing the thorough analysis that AGL performs on every gem submitted for testing. Many of the world’s top gem dealers regard the American Gemological Laboratory has the world’s best Gem Lab.

I am a highly trained Gemologist holding the American Gem Society title of Certified Gemologist Appraiser, the highest Gemological title in the United States and recognized around the world. As of now, there are four Gemological Laboratories in the world that in many ways are equal in their capabilities, reputation and provenance. Many regard the AGL as the leader among these four prestigious facilities. However, I regard them as equals, each having slightly different nuances and information in their report presentations. That said, arguably the world’s most famous Gemologist Dr. Eduard Gübelin pioneered gemology as we know it today. In 1923 Dr. Gübelin’s family jewelry business started the Gübelin Gem Lab in Lucern Switzerland and after WWII Eduard Gübelin and his enthusiasm for gem study made the Gübelin Gem Lab the pre-eminent authority sought out by the world’s top jewelers, auction houses and gem buyers. In 1931 a Gemologist of equal brilliance and enthusiasm, Robert Shipely founded the Gemological Institute of America (GIA) and created the GIA Gemological Laboratory. Then, sprouting from GIA education and Gübelin inspiration came the “Ivy League” Gemologist C.R. “Cap” Beesley. Flamboyant and confidant, Cap founded the American Gemological Laboratory in New York City in 1977 and quickly became the leader in Gemological reporting identifying a gemstone’s origin through inclusion study and comparison and in 2009 Christopher Smith purchased and re-privatized the AGL. Then in 1996 a brilliant student of Dr. Gübelin, Dr. Adolf Peretti founded the Gem Research Swiss Lab (GRS). Today ruby and sapphire Gems with Dr. Peretti’s reports identifying them as Pigeon’s Blood Red (for Ruby) and Royal Blue (for Sapphire) are extremely sought after by the world’s top gemstone aficionados.
Each of these four gem labs bring the highest level of reporting provenance and consistency that the world’s top gem dealers and buyers rely upon. The world’s most fabulous and expensive colored gemstones would not trade hands unless accompanied by a laboratory report by one or a combination of these four prestigous Gemological Laboratories. To learn more, Google the names of these gemologists and their laboratories.