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Overall Size 23 x 19mm
4 dies for flat mineral glasses
High quality and brand new diamond cutting diamond discs
Bergeon 30097BC
1.70ct Oval Faceted Sapphire 7.1x6.3mm Cyclomotion Overall Size 23 x 19mmSapphire 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