a cut and polished precious stone or pearl fine enough for use in jewelry.

something likened to or prized as such a stone because of its beauty or worth

His painting was the gem of the collection.

a person held in great esteem or affection.

muffin ( def. 1 ) .

British Printing . a 4-point type of a size between brilliant and diamond.

to adorn with or as with gems; begem.

Jewelry . noting perfection or very high quality

gem color; a gem ruby.

noun

bauble * , glass * , hardware * , jewel , jewelry , masterpiece , nonpareil , ornament , paragon , pearl , pick , prize , rock * , sparkler , stone , trump * , agate , alexandrite , amber , amethyst , amulet , aquamarine , bezel , bijou , birthstone , cabochon , cameo , chatoyant , citrine , diamond , emerald , facet , garnet , gasper , gemstone , intaglio , jade , lapis , lapis lazuli , lazuli , marquise , moonstone , morganite , onyx , opal , peridot , rhinestone , ruby , sapphire , sardonyx , solitaire , topaz , turquoise , zircon