5.87ct Cushion Cut Sapphire Certified Unheated 9.6x9.1mm precious metal tester Horotec Swiss MSA 07

Horotec Swiss MSA 07

5 * 4cm / 4

Trifix mainsprings are supplied lubricated

A1 Assortment of 30 dies for fitting crystals

1 * Extended Holder

5.87ct Cushion Cut Sapphire Certified Unheated 9.6x9.1mm precious metal tester Horotec Swiss MSA 07This unheated sapphire is accompanied by a certificate from GIA. Sapphire 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