14K synthetic Alexandrite Ring 1950s - 1965 by: Yvonne
Hi Lisa,
Thanks for reaching out. So glad you found us.
It's certainly NOT British hallmarking. British would have town mark, date letter, etc.
This seems to be American 1940s-1960s costume/fine jewelry.
1.*F.S.* = Most likely *Foster & Sons* or *Fischer & Son* or *Foster Jewelry Co*.
There were several "F.S." makers in the US mid-century. They often made 14K rings with synthetic stones.
2.The symbols = Those are probably *import marks* or *alloy/finisher marks* used by US jobbers. The leaf/tree one often shows up on jewelry that had Asian components or was sold through catalogs.
3.*9.5mm Alexandrite* = Lisa you are right to be suspicious. Natural alexandrite that size in 14K would be $20k+. In a ring marked like this, it’s 99% synthetic/color-change corundum or a lab alexandrite. These stones were popular 1950s-70s.
Era guess from The Bench: 1950s - 1965. "F.S." + 14K + synthetic alexandrite was a catalog/ department store formula.