plural of star sapphire

A form of corundum having very few impurities; sometimes substituted for diamond.

(mineralogy) A deep blue variety of iolite, sometimes used as a gem.

A sapphire exhibiting asterism.

Synthetic sapphire, commonly used as a window material for its transparency and scratch-resistance.

plural of sapphire glass

plural of blue-throated sapphire

Hylocharis eliciae, a hummingbird of South America with a metallic golden-green tail and blue-violet throat and a straight red black-tipped bill.