The term 'RING FEATURE' can be broken down into three crossword solutions: GEM (3 letters), GEMSTONE (8 letters), and MAINEVENT (9 letters). A GEM is a precious or semi-precious stone that is cut and polished for use in jewelry. Gemstones are minerals that are cut and polished to be used in jewelry. A main event is the most important or featured event of a show or gathering. In the context of a ring, the feature would be the GEMSTONE or main event, such as an engagement ring featuring a diamond or a championship boxing match.