Double-sided sheet of paper sells for $ 1,202,500 . The album is considered a turning point in the career of the Beatles , transforming them from pop icons to among the 20th century 's leading artists . The most expensive item in the world is a single diamond, which can be sold at an estimated price of $ 2,500,000 to $ 3,500,000. Pepper 's Lonely Hearts Club Band ' Believed composed on the morning and afternoon of January 17 , 1967 .
Double-sided sheet of paper sells for $ 1,202,500 . The most expensive item in the world is a single diamond, which can be sold at an estimated price of $ 2,500,000 to $ 3,500,000. Pepper 's Lonely Hearts Club Band ' Believed composed on the morning and afternoon of January 17 , 1967 .