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portable instrument for validating gemstones
Shank Length: 30mm / 0
Everyday alarm function
It's suitable for polishing granite
Portable LED illuminated grading and storage case with built-in grading tray
1.57ct Round Faceted Pink Sapphire 6.3x4.8mm Rubber Loupe 10x Chrome portable instrument for validating gemstonesSapphire 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