A remarkable 647-carat diamond has been discovered in the Douradinho riverbed near Coromandel in southeast Brazil, marking the second-largest diamond find in the country’s history. Valued at over $3 million, the gem’s discovery has stirred excitement across the region, reigniting interest in Brazil’s storied but diminished diamond mining legacy.
The stone, brown in color and of significant size, was recovered in late May from an area known for its mix of artisanal garimpeiros and formal mining operations. Coromandel, a rural town with a long-standing association with precious minerals, erupted in celebration following the find.
“Everyone was euphoric,” said a spokesperson from Coromandel’s local government. “It’s been decades since we’ve seen a diamond of this magnitude. The entire town is buzzing with pride.”
The only larger diamond ever recorded in Brazil is the legendary 726.6-carat President Vargas diamond, found in the same region in 1938. While Brazil once led the world in diamond production between 1730 and 1870, its share of global output has since dwindled to below 1%, largely from alluvial sources.
Despite its reduced role in the global diamond trade, Brazil occasionally surprises with exceptional finds like this. According to Brazilian outlet Click Petróleo e Gás, the newly discovered gem has already changed hands in a discreet sale, further fueling speculation about its future journey—whether into a collector’s vault or a historic jewelry piece.
This find is not only a milestone for Brazilian mining but also a reminder of the untapped potential lying beneath the country’s ancient riverbeds.
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