1.70ct Oval Faceted Sapphire 7.1x6.3mm hand press

1.70ct Oval Faceted Sapphire 7.1x6.3mm hand pressSapphire 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

Favourite with the precious metal buyer

providing superior

1 * Surface Resistance Meter

Classification: Security Gloves

Ready to use

Weight 280g

Stone Size (mm): 20x10

the picture may not reflect the actual color of the item

(04) Cylinder Extra Large

00ct - Ø8

Package: : Box

2 * 34mm Diameter Lens