Sapphire has a hardness of 9 on the Mohs scale. This beautiful piece of Sapphire facet rough from the Winza mining district in Tanzania weighs 2.48cts measures 8x7x5mm and has some viels.WINZA SAPPHIRE 2.48 CTS 8X7X5MMSKU: WINZ#12 $250.00 Regular Price$75.00Sale PriceQuantityOut of StockNotify When Available