Tag: How To Buy Sapphire Gemstone

Sapphires are the most precious gemstone in the world. The rarity of the sapphires is very high. It is the second hardest gemstone after diamond. The Mohs scale of a diamond is 10/10 and the Mohs scale of sapphire is 9/10. It is a variety of corundum and aluminum oxide. It is found in different colors like green, orange, pink,

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