The Taylor-Burton

69.42 Carats, color: F-G, clarity: IF, cut: Pear-shape, source: Premier Mine, Transvaal, South Africa.
It was founded in 1966 in the Premier Mine in South Africa. The rough, which weighted 240.80 carats, was cut into a 69.42 pear shape diamond.
As you might guess from the name, Richard Burton bought and named this stone as a gift for Elizabeth Taylor. Yes, Richard Burton bought it $1,100,000. He also named this stone as an engagement. After Burton's death in 1979, Liz Taylor sold the stone for charity and reportedly received $2.8 million. She donated in his memory to a hospital in Biafra. It was last seen in Saudi Arabia.