Noun

• S: (n) gem, treasure (art highly prized for its beauty or perfection)
• S: (n) gem, gemstone, stone (a crystalline rock that can be cut and polished for jewelry) "he had the gem set in a ring for his wife"; "she had jewels made of all the rarest stones"
• S: (n) jewel, gem (a person who is as brilliant and precious as a piece of jewelry)
• S: (n) muffin, gem (a sweet quick bread baked in a cup-shaped pan)
• S: (n) jewel, gem, precious stone (a precious or semiprecious stone incorporated into a piece of jewelry)