Purple Sapphire in Oval Shape from Thailand

About Purple Sapphire

Purple sapphire is the purple variety of corundum, a crystalline form of aluminium oxide. Its colour can range from lilac and violet to plum, often with pink, blue or grey undertones. Trace elements such as iron, chromium, titanium and vanadium influence the colour. The stone is usually transparent to translucent and may show pleochroism, meaning that different colours or intensities appear when it is viewed from different…