sapphire

Adjective

• of something having the color of a blue sapphire
  • sapphire eyes
    

Noun

• a light shade of blue

• a transparent piece of sapphire that has been cut and polished and is valued as a precious gem

• a precious transparent stone of rich blue corundum valued as a gemstone

Related words

• Synonyms: 
  azure , cerulean , lazuline , sky-blue