The JGI Group was created in 1990.
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1954
"JGI" on a ring likely stands for the Jewelry Group International, which is a company that specializes in manufacturing and selling jewelry. The initials may represent the company's logo or branding on the ring. It is common for jewelry pieces to have the manufacturer's mark or logo engraved on them for identification and authenticity purposes.
MVM Group was created in 1948.
BMB Group was created in 2004.
Group Portrait was created in 1991.
Pacha Group was created in 1967.
Ulstein Group was created in 1917.
Yurun Group was created in 1993.
EEC Group was created in 1977.
Gallaher Group was created in 1857.
Stobart Group was created in 195#.