Here is a fabulous, very large Danish Sterling silver ring set with a translucent agate stone.. The maker's mark is a monogram, which I have not been able to decipher.
Condition: Excellent, no visible damage
Marks: Denmark Jn? monogram, Sterling
Size: to fit finger size: UK O. US 7.25, Eu 55. Top of ring is 3.25 cm ( 1.3") long