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Diamond comes from the Greek word "adamas", which means "invincible".
What is True?
What a Gem! From sparking diamonds to rich red rubies, some rocks are valuable and known as gems. They are mined from the Earth at a huge expense, cut and polished, and usually made into jewelry.
The Cullinan diamond (world's largest diamond ever found) at 3,106.75 carats was found by Thomas Evan Powell, a miner who brought it to the surface in Cullinan, South Africa on January 26, 1905