sapphire

1. A precious transparent stone of rich blue corundum valued as a gemstone (synset 115044050)
   is a type of:

   • corundom, corundum - very hard mineral used as an abrasive
   • transparent gem - a gemstone having the property of transmitting light without serious diffusion
   subtypes: star sapphire - a sapphire that when cut shows a starlike figure in reflected light because of its crystalline structure
2. A transparent piece of sapphire that has been cut and polished and is valued as a precious gem (synset 113393985)
   is a type of: gem, jewel, precious stone - a precious or semiprecious stone incorporated into a piece of jewelry
3. A light shade of blue (synset 104976419)
   is a type of: blue, blueness - blue color or pigment; resembling the color of the clear sky in the daytime
   same as: azure, cerulean, lazuline, sky-blue

1. Of something having the color of a blue sapphire (synset 300384353)
   "sapphire eyes"
   similar to: chromatic - being or having or characterized by hue

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