Third-party auction deals have made some people very rich—but they may be bad for the market in the long run

Guarantees can be lucrative, but in the face of savvy competition, novices can get burnt when backing works as a third-party

New York auction topped by Monet's Le bassin aux nymphaés, sold to an Asian buyer at $31.8m

The “snake jug” shattered the previous record for Anna Pottery, a niche favourite of Americana collectors

Chicago’s aborted effort to sell Kerry James Marshall’s public work teaches us something about the transactional nature of today’s culture

The judgement comes after two experts found the painting was made with modern synthetic pigments

The work was one of 18 to have been placed under a court order following a financial dispute unrelated to the auction

Two-day auction will include works by Picasso, Matisse, Egon Schiele, collected by Bernd Schultz over six decades

With no auction precedent and little primary market data, Christie's sale of a work made by an algorithm tests demand

The 20-lot sale spans the auction house's New York and London locations and includes works ranging from Old Master paintings to a Monet

The Japanese carved toggles feature in his 2010 memoir The Hare with Amber Eyes

Now being sold by a London-based collector at Christie's New York, the work will probably go to Japan or China

Girl With Balloon canvas ‘self-destructed’ live at Sotheby’s last week in one of the most publicised stunts in auction history

Middle Eastern and South Asian works owned by embattled Dubai-based private equity firm carry much lower estimates than prices paid a decade ago

Sotheby’s New York to sell Sleep which inspired the rapper's video fro Famous

Just when we thought Frieze week was all over, twists and turns provide high drama at Sotheby’s contemporary evening sale on Friday night

Brexit and Trump's trade war with China are affecting the mood of buyers

Girl with a Balloon (2006) had just hammered at £860,000

Francis Bacon's lighter depiction of George Dyer leads auction at £17.5m, with strong prices for Hurvin Anderson, Bridget Riley and Albert Oehlen

The curvaceous M indicates a work that is "subject to right of first refusal"

Profits from the sale will support new UK arts education programme in 2019

The work, commissioned in the 1990s for $10,000, is due to be sold at Christie’s, New York for an estimated $10m to $15m

Move follows a record-breaking breaking year for Paris auctions in 2017

Our pick from this week's fairs and auctions

No buyer's premium and bidding paddles on your phone, but founder still believes holding physical auctions is key

The auction of art, antiques and works of art was cancelled an hour after its supposed start time following private deal

The work was bought by a Baton Rouge family for about $120 while travelling in London in 1958, the Wall Street Journal reports

Our pick from this week's auctions and fairs

Christie's to sell $70m painting once pledged to the Seattle Art Museum

The auction house hopes the works will surpass previous records by several million