What does 915 stamped on jewelry mean?

Answer 1

A stamp of 915 on jewelry usually refers to the jewelry containing 91.5 percent silver mixed with 8.5 percent of another alloy. This alloy is usually copper. This stamp can also appear on both silver and gold-plated silver jewelry.

Answer 2

there is no such thing to my knowledge as a 915 stamp on a piece of jewelry,but yes a 925 stamp exists which refers to sterling.

I am trying to find out the same thing. I can say that R 915 stamp does, indeed, exist. I have seen it on 23 kt gold jewelry from India. I am not sure what it means, however.

22 karat gold is often refer as 916. Especially, in India where 22k or 24k is used as jewelry. 916 is derived from 22/24 i.e. 22 parts of total 24 is pure gold. Similarly, 18K is referred as 750 (18/24) and 14K is reffered as 583.