Comme des Mode Silver 925 Black Rhodium Ring Set Purchased at the Isetan department store in Tachikawa. I liked the black rhodium and bought it. The size was a bit large, so I didn't use it much and kept it in storage. The other one, I liked the square shape and it's one of several I bought. I've lost the warranty card, but it is definitely authentic. Since it's silver, there may be some areas that have darkened, but because of the rhodium coating, polishing with silver polish would remove it. So, I wiped it with a soft cloth like a glasses cleaning cloth. There are some scratches, but I think it's still usable. Please understand that this is a used item before bidding. Returns are not accepted to prevent switching. Material: Silver 925, Black Rhodium Coating Sizes: Size 13 Size 11