3.15ct Colour Change Cushion Cut Sapphire Certified Natural Unheated 7.7x7.1mm Witschi Analyzer Q1 Base diameter Ø85mm

Base diameter Ø85mm

lowers risk of loss

Item Weight: 14

Photo Format: BMP/JPG

3.15ct Colour Change Cushion Cut Sapphire Certified Natural Unheated 7.7x7.1mm Witschi Analyzer Q1 Base diameter Ø85mmSapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur in orange, yellow, green, brown, purple, pink, black and colourless. Red and reddish pink coloured corundum is referred to as ruby. The variety in colours is due to trace amounts of elements such as iron, titanium, chromium, copper and magnesium. Mohs Scale of Hardness: 9 (out of 10). Sources: Mines that have yielded the