Blue Sapphire:- The Most Powerful Gemstone

The gemstone for September Month, Blue Sapphire or Neelam Stone is one of the hardest, valuable, and expensive stones in the world. In fact, the Neelam stone holds the hardness of 9/10 on the Mohs scale of hardness- After diamonds, Sapphire comes on the second of the life with the hardness level of 9 on the moh scale.

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