0.45ct Square Cushion Cut Bi-Colour Sapphire 4.3mm Auracle Agt1 Plus Electronic Gold & Platinum Tester Item weight: 75g / 2

Item weight: 75g / 2

Overal size 100 x 90 x 25mm

Max & Min Value Test

105 x 360 x 9

New version Horotec screwdriver sharpener

0.45ct Square Cushion Cut Bi-Colour Sapphire 4.3mm Auracle Agt1 Plus Electronic Gold & Platinum Tester Item weight: 75g / 2Sapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur. 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 finest sapphires in colour and clarity are located in Kashmir, Myanmar and Sri Lanka. Nowadays the main sources of sapphires are: