4.23ct Cushion Cut Pink Sapphire 9.2x7mm Bergeon 5356 Pocket and Wrist Watch Mainspring Winder Fine point - Red

Fine point - Red

Dimensions: 240 x 340 x 2

Tap and Die Set

(09) Ball Medium

4.23ct Cushion Cut Pink Sapphire 9.2x7mm Bergeon 5356 Pocket and Wrist Watch Mainspring Winder Fine point - RedSapphire 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