2.51ct Cushion Cut Sapphire 7.9x7mm Hagerty Jewellery and Crystal Cleaning Silver Dip Best set for medium work

Best set for medium work pieces

AC Voltage Range: 2V/20V/200V/600V

shell and other materials that require water during the drilling or shaping process

200 * 20 * 20mm / 7

2.51ct Cushion Cut Sapphire 7.9x7mm Hagerty Jewellery and Crystal Cleaning Silver Dip Best set for medium workSapphire 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