star sapphire

plural star sapphires

1. A sapphire exhibiting asterism.

   1 more example

   But a great wonder of this chamber, and a marvel to behold, was how the capital of every one of the four-and-twenty pillars was hewn from a single precious stone, carved by the hand of some sculptor of long ago into the living form of a monster: […] there a star sapphire the colour of moonlight, cut for a cyclops, so that the rays of the star trembled from his single eye: […]

   1922, E[ric] R[ücker] Eddison, The Worm Ouroboros: A Romance, London: Jonathan Cape […], →OCLC, page 3