On May 11, Christie’s Geneva Magnificent Jewels sale will auction a 228.31 pear-shape diamond, considered the largest white diamond ever auctioned.
The gem, dubbed The Rock, is expected to fetch between $20 million and $30 million.
The diamond was mined and polished in South Africa more than two decades ago, Christie’s said. It’s been graded by the Gemological Institute of America as G color, VS1 clarity, and it’s accompanied by a letter from the GIA stating it’s the largest existing D–Z color pear-shape diamond the lab has ever graded.
The previous largest white diamond sold at auction was a 163.41 carat gem, which sold at Christie’s Geneva in November 2017 for $33.7 million.
“The market for diamonds is particularly vibrant, and we are confident that this sensational gemstone will capture the attention of collectors across the globe this spring season,” said Rahul Kadakia, Christie’s international head of jewelry, in a statement.
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