jewellery vs lavaliere

jewellery

noun
  • Collectively, personal ornamentation such as rings, necklaces, brooches and bracelets, made of precious metals and sometimes set with gemstones. 

lavaliere

noun
  • A pendant on a chain. 

adj
  • Worn on the chest. 

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