Bedeutung von “gem” — Learner’s Dictionary

gem

noun [ C ] us uk /dʒem/
STONE

a valuable stone, especially one that has been cut to be used in jewellery

SPECIAL PERSON/THING informal

someone or something that you like very much and think is very special:

She's an absolute gem.

(Definition von “gem” aus dem Cambridge Learner's Dictionary © Cambridge University Press)