Yes, I don't really know what to refer them as. One vendor referred to them as gothic, the other as knuckle rings, and I refer to them as trendy knuckle rings.
Yes, I have 3 different sets, Some of the rings have different designs like, bows, plain, curves, crystals, etc. I mistakenly put both photos of the same set. I will add the other 2 if it lets me. Thank you for bringing it to my attention.