discerning
adjective /dɪˈsɜːnɪŋ/
  /dɪˈsɜːrnɪŋ/
(approving)- able to show good judgement about the quality of somebody/something
- The discerning customer will recognize this as a high-quality product.
 - To the discerning eye, the quality may seem quite poor.
 
Oxford Collocations DictionaryDiscerning is used with these nouns:- buyer
 - eye
 - palate
 - …