This beautiful piece of Nigerian Tourmaline has a hardness of 7.5 on the Mohs scale. This piece of facet rough weighs 9.42cts and measures 14x10x7mm.NIGERIAN TOURMALINE 9.42 CTS. 14X10X7MMSKU: NTOR#4 $1,500.00 Regular Price$450.00Sale PriceQuantityAdd to CartBuy Now