When next you go to church, do not pray for miracle. Instead, ask God to lead you to a diamond even if its the size of a boiled egg's yoke.

No blessing could be better than that; Diamonds are forever.

From gold to diamonds, precious minerals continue to raise the stakes in wealth valuation.

On Tuesday, British jeweler, Graff said it has purchased the world's largest uncut diamond -- roughly the size of a tennis ball -- for $53 million, about 16.1 billion naira.

Canadian miner, Lucara Diamond sold to Graff the 1,109-carat gem, nicknamed the Lesedi La Rona, which was found in Botswana's Karowe mine in late 2015.

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"We are thrilled and honoured to become the new custodians of this incredible diamond," said company chairman, Laurence Graff, in a statement.

"The stone will tell us its story, it will dictate how it wants to be cut, and we will take the utmost care to respect its exceptional properties."

Lucara confirmed the hefty price tag in a statement issued in Vancouver.

"The discovery of the Lesedi La Rona was a company defining event for Lucara," said William Lamb, president and chief executive of Lucara.

Last year, the rough diamond failed to meet its reserve price of more than $70 million at an auction.

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