What is "sapphires"

Usage examples of "sapphires".

Maybe, I thought, I had found it: a world where the temperature is warm enough to make clothes unnecessary, where breakfast, lunch, and dinner hang from trees, and where eager natives wear star sapphires around their necks.

But sprinkled throughout were enough rubies, emeralds and sapphires to give the creature a scintillating, rainbow hue that seemed to dance across the surface of her body.

Scattered here and there were smaller rubies and sapphires, down to the size of grains of sand.