CW on the inside of a ring stands for "Carat Weight," indicating the weight of the gemstones in the ring. It provides information about the total weight of the diamonds or gemstones in the ring.
In a ring, CW typically stands for "counterclockwise." It refers to the direction of rotation, specifically for tightening or loosening nuts, bolts, or screws. CW is the opposite direction of rotation to the clockwise direction.
My sister found a ring with a red stone n some smaller stones. The markings on the inside say cw 925 THA. What does this mean?
The "C" of the "CW" is actually a half moon and was one of the marks used by Watrous.Jewelery from Colonial Williamsburg is marked CW
4 karrot gold
Could be 2.5 carat total weight diamonds.
It means 14K PBD Peter Brams designs
http://www.trademarkia.com/esx-74196079.html
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.
"P4SR" marked on a ring could indicate that the ring is made of platinum (P), with a purity level of 950 parts per thousand (4/5). The "SR" could be a maker's mark or hallmark indicating the manufacturer or designer of the ring.
SECO was the trademark of Stein and Ellbogen, a jewelry wholesaler.
i have the same 18 marked 750 gold ring