Victoria Beckham has put her wedding tiara up for auction.

The 39-year-old fashion designer is selling her lavish £25,000 gold and black crown which she wore at her royal-themed wedding to former soccer star David Beckham.

Emily Barber, director of Bonhams Jewellery Department in London said: ''Interest in the tiara is expected to be two-fold because it is designed by acclaimed jeweller, Slim Barrett, whose pieces rarely come up for sale at auction.

''The fact that it was worn by international style icon Victoria Beckham on her wedding day adds even further interest to the piece, bringing it to the attention of a wider audience.''

The 18-carat crown-style latticed tiara with diamond drops will be auctioned off at Bonhams on December 5 with a price of between £18,000 and £25,000.

Victoria borrowed the crown from Slim and it has since been exhibited at the Victoria and Albert museum but could now go to a private owner.

The former Spice Girl married 38-year-old David on July 4 1999 at Luttrellstown Castle in Ireland and the couple's four-month old son Brooklyn was the ring bearer.

To complement her crown, Victoria wore a £60,000 wedding gown by Vera Wang and the couple sat in matching gold thrones.

The couple have four children together, Brooklyn, now 14, Romeo, 11, Cruz, eight, and two-year-old daughter Harper.

The family have bought a luxury £50 million home near Kensington Palace, which is close to the residence of Prince William and Duchess Catherine.