Moijey Fine Jewelry & Diamonds Blog

How Sapphires Can Change Color

Originally posted on September 22nd, 2017

Updated on April 10th, 2020

You read that correctly, ladies and gentlemen. Sapphires can change color under different types of light. This unique sapphire (that fantastic title is also a technical term for gems that display unique optical properties) changes from blue to violet in daylight/ fluorescent light to a violetish purple or a strongly reddish-purple under incandescent light, like candlelight.

How cool is this?

This quality is caused by vanadium in sapphire's chemical composition and crystal structure. Vanadium is also mostly responsible for the luscious green of emeralds. I say "mostly" because chromium is usually the dominant trace element for emerald's springtime green.

Vanadium can produce phenomenal color change sapphire and gorgeous emeralds.

There isn't enough vanadium in corundum deposits; therefore, color-change sapphires are rare. Color change sapphire is surprisingly more affordable than alexandrite, which is renowned for color change. This ring has a color change courtesy of alexandrite. We can find color change sapphires for this ring, too, because we're that awesome.


You cannot go wrong with color change gemstones.

Sometimes color change sapphire is called Alexandrite-like Sapphire. But I digress. The color change phenomenon can be either weak, moderate, or sharp.

Dan Moijueh and I can find color change sapphires for you if that's what you desire for an engagement ring center stone. Give us a call, and we'll work together.

I hope you enjoyed Moijey's articles about sapphires. Next week I will write about star sapphires: one of my all-time favorite gemstones!