Egg-sized diamond called The Rock fetches £17.7m at Swiss sale

11 May 2022, 21:24

The Rock
Switzerland Diamond Auction. Picture: PA

The 228-carat pear-shaped G-Color stone has a gross weight of 61.3b (2.2oz).

An egg-sized white diamond billed as the largest of its kind to go up for auction has sold for more than 21.6 million Swiss francs (£17.7 million) including fees.

The 228-carat pear-shaped G-Colour stone known as The Rock – with its platinum pendant mounting – has a gross weight of 2.2oz and dimensions of 2.1in by 1.2in, making it about the size of a medium hen’s egg.

G-Colour is not the highest grade, but fourth on the letter rung below the top-grade D-Colour diamonds.

An unspecified private buyer acquired The Rock at the low end of the expected range, Christie’s said. The pre-auction estimate was between 19 million and 30 million francs (£15.6 million to £24.6 million).

Switzerland Diamonds Auction
The Red Cross and The Rock at Christie’s (Salvatore Di Nolfi/Keystone/AP)

Max Fawcett, head of jewellery at Christie’s Geneva, hailed a successful sale in “uncharted territory” for a stone of its kind.

Also going under the hammer on Wednesday was the Red Cross diamond, a 205.1-carat fancy yellow stone, which fetched nearly 14.2 million francs (£11.6 million), double the pre-sale estimate.

The diamond was cut from a rough stone unearthed at South Africa’s Griqualand mines in the early 20th century, and went up for auction for the first time in 1918.

Mr Fawcett said there was a “huge amount of interest” in the Red Cross diamond, adding that an unspecified “seven-figure sum” from the proceeds of the sale to an unspecified private buyer would be donated to the International Red Cross Movement, the Geneva-based humanitarian aid group.

By Press Association

Latest World News

See more Latest World News

Russian President Vladimir Putin has hit back at western leaders for their lack of "machismo" and said it would be ‘disgusting’ to see Boris Johnson topless.

Putin mocks G7 leaders' lack of 'machismo' and says PM would look 'disgusting' topless

Ukraine has retaken Snake Island after Moscow's troops abandoned the strategic outpost in what Russia's Defence Ministry has described as a 'goodwill gesture'.

'Kaboom!' Ukraine celebrates Putin's humiliation as Russia retreats from Snake Island

President Joe Biden listens as Judge Ketanji Brown Jackson speaks

Ketanji Brown Jackson to be sworn in as US Supreme Court justice

An investigator works outside the Bataclan concert hall (Christophe Ena/PA)

Life without parole for surviving extremist who carried out Paris attacks

A shark is seen swimming across a sand bar (Phil Marcelo/AP)

Great white sharks head to Cape Cod as busy tourist season gets under way

Police outside the Bataclan concert hall in Paris (Catherine Wylie/PA)

Men convicted of involvement in 2015 terror attacks in Paris

Salah Abdeslam is believed to be the only surviving member of the group that killed 130 people in the 2015 Paris attacks

Islamic State member found guilty of mass murder for 2015 Paris terror attacks

Vatican Pope Pelosi

Pro-choice Nancy Pelosi receives communion at Vatican despite home city ban

Workers clear debris at the Kremenchuk shopping centre damaged in the Russian rocket attack

Search ongoing for 20 missing after Russian strike on Ukraine shopping centre

People attend a community vigil for the dozens of people found dead in a trailer in San Antonio

‘Difficult process’ identifying Texas lorry trailer death victims – authorities

World Health Organisation chief Tedros Adhanom Ghebreyesus

US abortion ruling ‘a setback’ that will cost lives, says WHO chief

Dutch farmers protesting against government plans gather for a demonstration at Stroe

Dutch PM condemns farmers’ protests at minister’s home

Cassidy Hutchinson, former aide to Trump White House chief of staff Mark Meadows, is sworn in by committee chairman Bennie Thompson

Trump dismissed January 6 threats and wanted to join crowd, says former aide

India Killing

Hindu tailor killed in cleaver attack amid religious tensions in India

The superyacht Amadea, which was seized by the US from a Russian oligarch

£25bn from Russian oligarchs frozen in multinational seizure effort

Travis Barker is been hospitalised in LA

Travis Barker's family plea for 'prayers' after drummer hospitalised with mystery illness