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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
Top inner diameter Ø56mm
5 Year mechanical and two-year electrical warranty
Package weight: 172g/ 6
Polishing with quick speed and without scratch
Screen Size: 5 inch
0.55ct Oval Faceted Sapphire 5.9x4.0mm Adjustable Ingot Mould 312g Top inner diameter Ø56mmSapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur. 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 finest sapphires in colour and clarity are located in Kashmir, Myanmar and Sri Lanka. Nowadays the main sources of sapphires are:
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