Jewels 17th Ring was a mixed martial arts (MMA) event held by promotion Jewels on December 17, 2011 at Shinjuku Face in Kabukicho, Tokyo, Japan. The event featured the semi-finals and final of the Jewels Featherweight Queen tournament, which determined the first featherweight (-48 kg) titleholder of the promotion. It also featured a Jewels lightweight queen championship match and the final of the Jewels Under-15 Amateur Kickboxing Tournament.