It probably means that the ring is 18 karat gold electroplated, not solid gold.
What does the number 3 mean on a ring
Example for a Ring. The Base -the bulk- of the ring will be made of silver and has then been coated with 18kt gold (24kt being 'pure' gold).
18KTGE and RSC: 18KTGE = 18 karat gold electroplated; RSC = jeweller's brand
What does 18kce inside a ring mean
What does 18kHGA mean stamped in a ring
What does 18 k. Wgf mean on a gold ring
18 karat gold
18 karat gold
18 carat gold
18 carat gold
it means it is 18 carat gold ring or 76% pure gold
WD = William Davis & Sons. 18 = 18 Karat
it is 18 karat
gold filled
It means that it was worn by the queen......
18 karat gold electroplate