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

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

The mega-collector’s latest lawsuit, filed in New York, escalates his three-year legal feud with Swiss dealer Yves Bouvier

Our pick from this week's fairs and auctions

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

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

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

Our pick from this week's auctions and exhibitions

In September 2008, Damien Hirst sold £111m of art as Lehman Brothers collapsed, triggering a financial crisis. A decade on, what has changed?

American collector's works, from Doig to decoy ducks, are to be offered across ten sales at Sotheby’s over the next eight months

Auction house is enlisting dealers and curators to promote the legacy of the polymath who is believed to have cursed his collection

Just two paintings significantly damaged the auction house's bottom line in the second quarter

No big hitters, but overall quality and new buyers from Asia and Latin America buoyed £42.6m auction, with £5.3m record for Canova set in day sale

Veteran Old Master dealer will join the auction house in New York at the end of the summer, months after selling his inventory there

Bronze and marble take centre stage during Old Masters sales week, although Dresden Mars returns home without going on the block at Sotheby's

Maurizio Seracini concurs that the painting sold by Sotheby’s in 2012 is a modern forgery

Christie’s introduces day sale format and established names give way to new talent

Artist was 80 years old when he began the painting of a former Tate cataloguer

Sotheby's sale fell below estimate while Christie’s provided some cheer, showing there is still money in Monet – but only the right one

Sotheby’s auction includes personal works by Hirst gifted to Dunphy, or sketched on the back of restaurant menus

Dmitry Rybolovlev's $450m windfall from Salvator Mundi sale undermined fraud allegation, report says, but criminal cases against Bouvier in Europe are ongoing

Five works made around $18m (with fees) at auctions at Sotheby’s New York on 19 May, and two were bought for undisclosed sums in private sales

Rapper P. Diddy identified as buyer of the Chicago-based painter's Past Times

Sex sells—but only if it is guaranteed

The painting, estimated to bring $30m, is a key lot in the auction house's upcoming evening sale in New York; plaintiff vows to appeal

Every work by the late UK artist up for auction—from stage designs to book covers—is an artist’s proof

First-quarter earnings show aggregate auction sales of $667m, affirming market's strength

The work is the largest in the artist's most sought-after series of pathbreaking Modern nudes

Announcement comes days after auction house reinstates buyer's premium in online sales