What are the differences in formation and properties between precious gemstones like diamonds, rubies, and sapphires, and semi-precious stones such as amethysts, garnets, and peridots?

What are the differences in formation and properties between precious gemstones like diamonds, rubies, and sapphires, and semi-precious stones such as amethysts, garnets, and peridots?
Admin on July 09 2025 at 05:29 PM in Gemstones
0 Answer(s)
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