What are semi-precious gemstones?

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In the western world, diamond, ruby, emerald, and sapphire are the four gemstones deemed precious. The remaining gems are called semi-precious, but this title doesn't always reflect their value. The…

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What is the Mohs Scale of Mineral Hardness?

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The Mohs Scale of Mineral Hardness is a well-known term in the jewelry world. It's one of the critical variables to evaluate gemstone wearability. The qualitative ordinal scale is used…

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