asteria
/əˈstɪriə/
noun
- A gemstone that shows a star-shaped pattern of light when cut, especially a star sapphire or star ruby.
- Collectors prize asterias for their rare optical effect, known as asterism.
- She bought an asteria ring because she loved the way the star seemed to float inside the stone.
- The jeweler examined the asteria under a bright lamp to see its six-rayed star.
Synonyms