I have a couple sizes on this one - vintage carefully stored old Excalibur hotel stock 25 - 30 years old. Never worn - mint condition. I believe the stones are onyx and mother of pearl - stamped inside 925. This one has a pretty Celtic woven design either side and a thick bottom band (1/4") for many years of wear. Very nice piece but only one I have left. Old stock from the days when things were made right. It is sizable but not by me - I don't have the equipment anymore.