Bulgari single ring
It comes in three colors: white, rose gold, and yellow gold. While rose gold is more popular, I personally prefer the yellow gold, which really flatters my white fingers.
Compared to the single-band rings from Kahn, this zero ring is even more unique and individual. This ring is simple and elegant, with a beautiful side profile, and looks very elegant on the hand. It also looks great on slender hands, and can be worn on the ring or middle finger. Don't worry about the comfort level; it's not uncomfortable at all.