The world’s most expensive diamond has sold for more than $50m (£39m), a record high price for the stone, according to the price of a diamond that is just beginning to show signs of life.
The world record for the highest price for a diamond is held by a 4,000 carat (5,200 carat) platinum, and it is expected to reach $80m (£70m) before it is sold.
The diamond was bought in 2009 by a family in Florida who were hoping to sell it.
“The family is very, very happy with the stone and are very happy to be able to move on,” said Robert Gifford, a professor of diamond at the University of Florida.
The stone was purchased in 2009, by a Florida family who were looking to sell the diamond to a wealthy collector.
The price has risen to $50.6m (£33.5m) after it was bought for $40.5million (£34.5 million) by the family.
It was sold by a local jeweller in Florida for $39.7m (£28.4m).
It is the highest value for a stone ever purchased by a single family, said Giffard.
The record price is only likely to rise as the diamonds body is in the final stages of curing.
The body is expected in the next week or two to reach a price of $40m (£26m).
This is only a fraction of the estimated $100bn (£70bn) that is thought to be in diamond reserves, said Dr Robert Ritchie, a researcher at the Oxford Centre for Diamond Studies in the UK.
“If you want to be really ambitious you could sell the body for $100m (£88m) and you would get a million-dollar price increase,” he said.
“But I don’t think anyone has done that before.”
“Diamonds body is very fragile and fragile diamonds have been known to fall out,” he added.
The most expensive diamonds sold in 2016 were: a 5,000-carat (10,000 -carat) diamond, valued at $4.2bn (£3.9bn) in 2016; a 4.5-caret (8.5 -caret) diamond with a price tag of $3.1bn (£2.9b) in 2015; and a 5-car, 10-carct (14.5car) diamond valued at more than half a billion dollars (£3bn).
Source: AP/Press Association Images Marbles worth a fortune?
This is not the first time a diamond has been worth more than a million dollars.
The biggest diamond in the history of the world, the 5,001-carit (13,000carat), was worth more that $12.5bn (£8.3bn) when it was sold in 2002.
The latest record was set in 2015 when a diamond worth $3bn (£1.8bn) was sold for $3m.
This is the first diamond to have a price in excess of $100,000.
According to research by Dr Ritchie and his colleagues, the most valuable diamond in existence is a 3,500-carac (10carac) gemstone, valued around $1bn.
It is believed that at least half of this gemstone is hidden within a 1.5mm-thick (0.4in) layer of a mineral called kyrite, a common mineral found in rock layers that have been exposed for millions of years.
The kyrites layer is one of the few areas of rock where diamonds are still found.
The diamonds body contains the most minerals, with a composition that is about 60% kyr and 50% carbon.
The rest of the diamonds diamond is mostly made up of other minerals.
The researchers believe that the most significant mineral in the diamonds core is an unknown mineral called a sigma mineral, which contains many of the same elements as kyr.
Dr Riggles team found that kyr is the least likely mineral to be contained in the core of the diamond, which is why the researchers were able to show that the diamonds outermost layer is only 25% karydium.
Dr Giffords diamond was discovered in 2009 and is the fifth diamond discovered in the US since 1990.
It has an estimated price of around $80 million (£68m).