If you look closer you'll see that the 5 is actually an S. The 925 stands for 92.5%, which is the Sterling silver standard. So a piece of jewelry with the marking S925 means that it's composed of 92.5% silver and 7.5% copper (usually it's copper).
What is the value of this ring it is S925
platinum gold palladium and silver
4 karrot gold
Could be 2.5 carat total weight diamonds.
It means 14K PBD Peter Brams designs
i have the same 18 marked 750 gold ring
Filled or "Gold Filled" Sometimes it will say GF
SECO was the trademark of Stein and Ellbogen, a jewelry wholesaler.
If it is a vintage ring, it may be from the Traub company that made engagements rings circa 1925 and marked their rings with a TT.
Have a ring RJ 8 marked inside. The 8 refers to ring size. Am searching RJ myself.