Blue Sapphire Gemstone (Neelam Gemstone) - To Stabilize EarningThe Blue Sapphire Gemstone belongs to the corundum family and is identical to the Gems like Ruby and white sapphire. Being siblings, all three stones may be found in the same mine sometimes and may observe the colour of each other. However, the only dimension used to tell them apart is the hardness. Blue sapphire is harder as compared to the other stones belonging to the corundum clan. Blue sapphire crystals are accessible on the twelve sided prism.