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LiveScience
LiveScience
Sascha Pare

Rare half-pink rough diamond with 'astounding' weight of 37.4 carats discovered in Botswana

Closeup picture of a bicolor natural rough diamond from Botswana.

Miners have unearthed a rare, two-colored natural diamond in Botswana — and experts say it likely formed in two stages.

The diamond is half pink, half colorless. It measures about 1 by 0.63 by 0.57 inches (24.3 by 16 by 14.5 millimeters) and weighs an "astounding" 37.41 carats (0.25 ounces, or 7.5 grams), according to the Gemological Institute of America (GIA), a nonprofit research center based in Carlsbad, California.

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