3.69ct Octagon Cut Sapphire Certified Unheated 9.2x7.7mm Kaya Cast Casting Machine - Arbe USA Red Handle

Red Handle

Bergeon 6830-S22

95mm Pump Pusher

Horotec MSA 07

For Screwdown crown pendant tubes with an internal Spline Ø2

3.69ct Octagon Cut Sapphire Certified Unheated 9.2x7.7mm Kaya Cast Casting Machine - Arbe USA Red HandleSapphire 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: