It’s a maker’s stamp. Likely the initials of the silversmith that made your jewelry.
it means 15m on a sj
SJ is either the jeweler or manufacturers symbol. 925 is usually .925 = 92.5% of pure silver and the remaining 7.25% is a different type of metal since 100% metal would be too soft to work with. Hope that helps
by asef
The "SJ" mark on a 14k ring most likely refers to the manufacturer or brand that produced the ring. It could also be a maker's mark to identify the specific jewelry designer or company responsible for crafting the piece.
its SF and it means scuderia ferrari
.sj was created in 1997.
What does this mean in jewelry?
SJ Berwin was created in 1982.
SJ Da was created in 1953.
SJ F was created in 1942.
SJ U was created in 1929.