United Kingdom, June 27 -- The largest collection of Princess Diana's belongings have gone up for auction.

Memorabilia and clothing from the late Princess of Wales are up for sale in Los Angeles and includes a cheque for £5.50 which she signed just weeks before marrying the then Prince Charles in 1981.

The cheque is expected to raise £3,000 but it is items of Diana's clothing that are likely to sell for the highest amounts - with a cream oil Catherine Walker falcon gown designed for her tour of the Gulf in 1986 expected to fetch between $200,000 and $300,000.

The dress was worn by Diana - who died in a Paris car crash in 1997 - to a private dinner in Saudi Arabia and she was never pictured in it.

A blue silk floral dress tha...