This has changed as Rio Tinto unveiled a set of diamond jewelry from its Bunder diamond mine in Madhya Pradesh.

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The diamond-encrusted disc symbolizes the natural abundance of the Bunder diamond deposit.

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Discovered in 2004 by Rio Tinto, the Bunder deposit is estimated at 37 million tons of ore containing 27.4 million carats, a volume that would place Madhya Pradesh in the top 10 diamond producing regions of the world.

FORBES: Rio Tinto Celebrates India's Bunder Diamond Mine with Unique Jewels

The collection incorporates a total of 25 .34 carats of polished Bunder diamonds and 2.8 carats of rough Bunder diamonds, including a 5.04 carat round brilliant cut white diamond and a 5.02 carat round brilliant cut cognac diamond.

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The Courageous Spirit collection consists of a one-of-a-kind necklace and a pair of earrings featuring 2.8 carats of rough Bunder diamonds and 25.34 carats of polished Bunder diamonds including a 5.04-carat round brilliant-cut white diamond and a 5.02-carat round brilliant-cut cognac diamond all cut and polished in India.

FORBES: Rio Tinto Celebrates India's Bunder Diamond Mine with Unique Jewels