Despite the fact that the primary purpose is lost, the style is still popular and worn by men, and women, all around the world—just in a more modern way.
According to most experts, the most popular finger to wear the signet ring on is the smallest one, the pinkie. And often, depending on the region, on the nondominant hand. This tradition also traces back to the Middle Ages, when the idea was to have it be the most accessible for the wearer to spread his seal as needed. But today, where and how you wear the ring is a matter of personal preference.