The origin of Cooper Sapphire Lab can be traced back to1early 9th century. Since the1850s, Guberlin Company has been mainly engaged in high-grade jewelry business. During the period of1920s, the appearance of synthetic rubies, synthetic spinels and cultured pearls threatened the stability and development of the jewelry industry, and we realized the importance of identifying gems embedded in jewelry.

Charles, an employee of Guberlin Company? Sarquin (Charles? Salquin) studied gemmology from the famous gemologist H.Michel at that time. After he finished, he brought back the most advanced knowledge and equipment for gem identification, Edward? Guberlin (Edward? Sir Gubelin) established the Cooper Gem Laboratory.