For your consideration is this nice sterling silver onyx ring. The black onyx stone is nicely faceted and does not show well in pictures. The setting has a nice filigree edging. Marked Sterling 0925 and a mark that I can't make out but looks like a letter followed by RI. and I suspect the ring is Mexican.
The ring is a size 7. The face measures 7/8 inches top to bottom.
It is in excellent condition other than being a hard out of round that does not affect the wearing. Nice patina and age!