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A 228.31-carat white diamond, merely often called “The Rock,” can be supplied at a Christie’s public sale in Geneva in Might, with a presale estimate between US$20 million and US$30 million.

Graded by the Gemological Institute of America (GIA) as G coloration and VS1 readability, a excessive readability grade with no seen inclusions, the gemstone is the biggest current pear-shaped white diamond graded by GIA, Christie’s mentioned. It can even be the biggest white diamond to look at public sale, Christie’s mentioned.

“The Rock will be a part of the perfect of legendary gems which have handed by Christie’s international salerooms since 1766,”
Rahul Kadakia,
Christie’s worldwide head of jewellery, mentioned in a launch Friday. “The marketplace for diamonds is especially vibrant and we’re assured that this sensational gemstone will seize the eye of collectors throughout the globe this spring season.”

The diamond will spotlight the public sale home’s jewellery sale on Might 11 in Geneva.

At the moment, the biggest white diamond offered publicly was a 163.41-carat gem, which fetched US$33.7 million at a Christie’s sale in Geneva in November 2017. 

The costliest diamond offered at public sale, together with white and coloured diamonds, is the Pink Star, an oval-shaped 59.6-carat pink diamond that was offered at Sotheby’s in Hong Kong for US$71.2 million in April 2017.

The Rock can be exhibited at Christie’s Dubai from March 26-29 earlier than being proven inTaipei and New York from April 29-Might 1 earlier than returning to Geneva for public viewing from Might 6-11.