點石成金 [点－－－]

Jyutping dim2 sek6 sing4 gam1
Pinyin diǎn shí chéng jīn

Definitions (CC-CEDICT)
  1. to touch base matter and turn it to gold (idiom); fig. to turn crude writing into a literary gem
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    to edit a crude piece of writing into an amazing literary work
  2. phrase, idiomatic
    to touch a stone to transform it into gold
  3. phrase, figuratively, idiomatic
    to turn something crude or ordinary into something valuable