worth one's weight in gold

worth one's/its weight in gold (to be extremely useful or valuable) — быть на вес золота, высоко цениться; ≅ настоящий клад

Example: A good teacher is worth his weight in gold.

Example : We have a team manager who’s worth his weight in gold. — У нас не менеджер, а настоящий клад.

Related vocabulary:
above rubies -- бесценный