Freya Simms speaks ahead of the tenth Lapada Art & Antiques Fair in London

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?

$450.3m Leonardo da Vinci painting was due to be unveiled at museum in two weeks but its display has now been delayed

A further 6,000 items belonging to Ali Aboutaam of Phoenix Ancient Art are still held by authorities in Geneva

The female Italian Baroque artist's depiction of Lucretia is thought to have been in European collection since the 19th century

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

IADAA and CINOA argue that compromise amendments to contentious new cultural goods regulations are still too stringent and ill-defined

Karan Vafadari and Afarin Neyssari paid a bail of around $10m according to sources but still await appeal request

Tacca's Hercules is star of the bronzes, while Carracci's military portrait and Rembrandt's print find favour where Rubens's daughter flounders in £31.1m sale

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

From a Van Dyck once thought to be by Rubens to William Nicholson's portrait of an actress identified only weeks ago

Ayad says decision to leave was "personal" and plans to launch her own art consultancy

Netherlands-based organisation will oversee events as two-year agreement with US firm expires, but Michael Plummer and Jeff Rabin remain as shareholders

UK capital's heatwave lends a relaxed summer atmosphere to cross-collecting fair, where deals are done at a slower tempo than at contemporary events

New shows at commercial galleries, from Canova's prank portrait of Giorgione to a feminist take on Pop art

Easel will offer careers information, a mentorship programme and a grant scheme to subsidise low wages in entry level roles

Exhibition at Domaine de Chantilly is the first on the development of the painting tradition

New stakeholder MCH Group brings capital and contacts to an event shaking off its try-hard image

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

The Swiss collector discusses his love of Lichtenstein, his regret at not buying a Subodh Gupta when he had the chance and hanging art on his refrigerator

Nine other works by the US artist sold on Lehmann Maupin’s stand at the fair

Revising import controls on cultural goods could impact negatively on trade, dealer organisations say

“For all the supposed desire for transparency, no one will make the first move”

Sector has raised the bar for large works, but price and size do not always match

From Gursky to Barney, our pick of five plastic-related works at the fair

Art Basel’s global director on collector behaviour, auction price databases and the complexity of the art market

The San Francisco Museum of Modern Art “will be acquiring” a series documenting a Modernist high-rise apartment block in Johannesburg