Sharon Osbourne is downsizing by auctioning off more than 600 of her treasured possessions.

Highlights include the quad bike which left Ozzy seriously injured in a 2003 accident, and a pair of the Black Sabbath singer's wire-rim sunglasses (£385).

Jewellery, memorabilia, costumes, paintings, furniture and decorative works of art are all going under the hammer in the two-day sale.

The Osbournes cleared out their Gothic-style mansion in Beverly Hills, their Malibu home and their Buckinghamshire mansion for the sale.

A portion of the proceeds, expected to top £1 million, will go to the Sharon Osbourne Colon Cancer Foundation.

A seated gilded Buddha, estimated to fetch £4,800 and seen in the Osbournes' backyard during their MTV show, is one of 400 lots of furnishings, fine and decorative arts on sale.

Other items include a walnut parquetry inlaid games table (£1,900), and a pair of imposing garden architectural spires (£960).
Items from the Malibu residence include the couple's distressed painted Louis XVI-style bed (£1,250) from their master bedroom.

Among the 200 lots of memorabilia is the beaded wire model of the Eiffel Tower featured in the MTV show (£96) and the cast bronze Devil's head plaque seen on their front door (£192).

Other lots from the reality series include Ozzy's preferred cup and saucer (£48), Jack Osbourne's black leather bed with crucifix motif in rivets (£962), and a cast iron crucifix that adorned Ozzy's den (£577).

Dresses belonging to Kelly and Sharon are also being sold.

X Factor judge Sharon said: "It has taken our lifetime to collect all of these items. Both Ozzy and I have very special memories of each and every item as it came into our home and became part of our lives.

"It is like giving up a part of us and we hope each and every item finds a very special home."
Ozzy said: "I don't know why we are selling everything as I want it all.  Sharon tells me that we have to, otherwise our house will f****** explode.

"As long as she does not ask me for a pair of my boxers for the auction I will support it, especially since it is helping raise funds for her charity."

Darren Julien, president of Julien's Auctions, which is organising the sale, said: "The Osbournes individually and as a family have greatly impacted pop culture globally.

"This is a unique first time opportunity for fans and collectors to obtain a piece of their historic careers and/or personal lives."
The two-day auction takes place on November 30 and December 1 at the Gibson Guitar Showroom in Beverly Hills