Gold ring with black stone, approx. 1950s. Danish goldsmith. Stamped "P.NY".

Gold ring with black stone, approx. 1960s. Danish goldsmith. Stamped "P.NY" Poul Nyhagen, active years 1960 - 1976. Measured at 14 carats. Stone with a small chip. Ring size 18. U.S. size 8