A colour-change sapphire and diamond ring

A colour-change sapphire and diamond ring, the emerald-cut sapphire weighs 4.45cts and is set with three graduated baguette-shaped diamonds to each shoulder in gold. Size L.

Accompanied by report number 13098 dated 5th August 2016 from The Gem & Pearl Laboratory, London stating that the square-shaped emerald cut sapphire weighs 4.45cts and is a natural sapphire exhibiting a change of colour and no evidence of heat treatment. The sapphire appears blue in daylight and purple in incandescent light. Origin: Sri Lanka.