gem ( gems plural )
1 n-count A gem is a jewel or stone that is used in jewellery.
...a gold mask inset with emeralds and other gems.
2 n-count If you describe something or someone as a gem, you mean that they are especially pleasing, good, or helpful.
INFORMAL oft N of n
...a gem of a hotel, Castel Clara..., Miss Famous, as she was called, was a gem.
Translation English Cobuild Collins Dictionary
1 jewel, precious stone, semiprecious stone, stone
2 flower, jewel, masterpiece, pearl, pick, prize, treasure
English Collins Dictionary - English synonyms & Thesaurus
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