star sapphire

noun
Updated on: 12 Jan 2018

Definition of star sapphire

: a sapphire that when cut with a convex surface and polished exhibits asterism

Recent Examples of star sapphire from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'star sapphire.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of star sapphire

1798


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