Sorry im legally blind and cannot see a stamp, I've had these for 25 year and I dont remember even wearing once, they are beautiful and I am allergic to faux metals so I have every confidence that they are real, wish I could help more
A very useful test when you can't find or read markings cuz gold doesn't stick to a magnet unless it's layered over a metal that does ;-) Watch your bids soar now! Lol!