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Petra Finds Five Rare Blue Diamonds
Johannesburg: Struggling gem producer Petra Diamonds Ltd. found five blue stones, typically among the most valuable in the world, at its flagship mine in South
17 September 2020
Johannesburg: Struggling gem producer Petra Diamonds Ltd. found five blue stones, typically among the most valuable in the world, at its flagship mine in South
Antwerp: The third day of the 39th World Diamond Congress was concluded with a closing session addressed by World Federation of Diamond Bourses (WFDB) President