West Ham United has welcomed the news on its website.
"West Ham United are extremely pleased to be announced as the Highest-Ranked Bidder to be the anchor concessionaire of the Olympic Stadium - a decision that guarantees a true and lasting legacy for east London and is the best outcome for the British taxpayer."
Click here to read the statement in full.
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The entertainer was held for the murder of Stuart Lubbock, who was found dead in his swimming pool in 2001, but never charged.
Although the diamond was believed to be cut in the 19th Century, its history and how it arrived at the car boot sale is unknown.
The former entertainer, who was released from prison on Friday, is accused of indecently assaulting three women in the 70s and 80s.