a colorless variety of corundum, used as a gemstone.
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How to use white sapphire in a sentence
Clear, colourless crystals are known as white sapphire, and are very valuable.
It has been produced artificially by adding iron instead of chromium to the matrix from which the white sapphire crystallizes.
Few colorless stones other than diamond, white sapphire (chiefly scientific), and quartz are seen in the trade.
In the light colored stones and in white sapphire, the difficulty is greater, as there are no color variations in the latter case.
The author thus obtained a white sapphire from a crystal of light yellow material.
British Dictionary definitions for white sapphire
a white pure variety of corundum, used as a gemstone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012