The term PERFECT THING can be broken down into two crossword solutions: IDEAL and GEM. IDEAL is an adjective that means 'excellent, satisfying all requirements; exactly right'. It is often used to describe something that is as good as it can possibly be. GEM is a noun that refers to a precious stone or mineral, usually cut and polished for use in jewelry. It is often used to describe something that is very valuable and beautiful. Together, these two words suggest something that is excellent, valuable, and beautiful - the perfect thing.