It's the "fineness" of gold or silver in the ring, expressed as parts out of 1000. "925" thus means the ring is made of 925/1000 pure precious metal, or 92.5%. If it's made of silver, that percentage is referred to as sterling silver.
what does 925 A mean
What does 925 inside a silver ring mean
Stamped inside a ring, the JS initials and the 925 mean the initials of the manufacturer and the karat of the ring. A ring that says 925 means that the ring has 925 karats.
925 on a ring mean
CI 925 Ring with lots of Diamonds
The silver content is .925
What does cc .925 mean on rings
What does CNA 925 STAMP MEAN INSIDE A RING?
925 is the symbol for silver
.925 percent silver.
PD 925
FAS 925 on a gold ring what does it mean?