27/10/2022
Just got these striking sapphires back from our cutting room, can any one guess which one is the colour change sapphire ?
Colour change sapphires are the chameleons of the sapphire world, extremely rare,truly transfixing and a marvel to behold.
Colour change sapphires change colour in different lighting conditions.Under daylight or fluorescent light the sapphire ranges from blue to violet. Under incandescent light the colour changes to a range of violetish purple to reddish purple.
The effect is caused by the interaction of the sapphire, which absorbs specific wavelengths of light source, whose spectral output varies depending upon the illuminate. Traces of metal impurities in the sapphire, such as chromium and vanadium are responsible for the colour change.