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| A shocking discovery shook the global geological and gemological world when a giant gemstone was found at Tan Huong mine, Yen Binh district, Yen Bai province in April 1997. This stone , after being cleaned and impurities removed, weighed 2.16 kg, equivalent to 10,800 carats, and was named "Vietnam Star". (Photo: Tahi Gems) |
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| Specifically, during the mining process, workers discovered a large block of rock that could not pass through the sieve because of its enormous size. (Photo: Tahi Gems) |
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| Initially, the stone had a rough, cauliflower-like appearance with many impurities stuck around it. (Photo: TahiGems) |
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| After cleaning, it was discovered that the stone was a ruby with a small crack on the surface. (Photo: Tahi Gems) |
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| This ruby is considered the largest gemstone ever mined in Vietnam and is also the world's top quality ruby. (Photo: SHTT&ST) |
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| With a hardness of 9.0 on the Mohs scale, ruby is second only to diamond and moissanite in hardness, making it one of the most durable and valuable gemstones. (Photo: Wikipedia) |
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| Recognizing the immense value of the stone, the Vietnamese Government decided to keep this ruby as a national treasure. Currently, the location of this largest gemstone in Vietnam and its valuation remain a mystery. (Photo: IRUBY) |
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The discovery of the largest gemstone at Tan Huong mine is not only a milestone in Vietnam's gemstone mining industry but also a testament to the richness and diversity of the country's natural resources. (Photo: Israeli Diamond Industry)
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Dear readers, please watch the video: Witness the "treasure mountain" filled with gold and precious stones of Russia.
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