at a premium vs exquisite

at a premium

prep
  • At a high, or higher than expected, price. 

  • Scarce, in short supply. 

  • Above par value. 

exquisite

noun
  • Fop, dandy. 

adj
  • Especially fine or pleasing; exceptional. 

  • Recherché; far-fetched; abstruse. 

  • Of special beauty or rare excellence. 

  • Of delicate perception or close and accurate discrimination; not easy to satisfy; exact; fastidious. 

  • Exceeding; extreme; keen, in a bad or a good sense. 

How often have the words at a premium and exquisite occurred in a corpus of books? (source: Google Ngram Viewer )