Diamonds are the most dazzling of gems, so why put them in a show that dims their natural brilliance, asks Waldemar Januszczak

But there’s nothing to fear as The Triumph of Painting limps into the Saatchi. It’s a veteran, Anselm Kiefer, who’s stealing the show for Waldemar Januszczak

His kingdom was the horse, and Stubbs has lately reigned supreme. But the National show makes him look like a runner-up, says Waldemar Januszczak

The Barbican’s new show has flashes of brilliance — but they can never make up for that accursed space, says Waldemar Januszczak

Who would have thought that Gilbert and George and a pile of stinky ginkgo would make the best Venice Biennale yet for Waldemar Januszczak

Fashion has inflated her reputation, yet Frida Kahlo had a fierce, at times great talent, says Waldemar Januszczak

How did we end up with Celebrity Love Island? It all started with Joshua Reynolds, says Waldemar Januszczak

They’re dark and lite, sober and brash … But put Rebecca Horn and Tracey Emin side by side, and it’s the sad girl from Margate who gets my vote, says Waldemar Januszczak

Under Jeremy Deller’s guidance, folk art kicks off its clogs for ever

Under Jeremy Deller’s guidance, folk art kicks off its clogs for ever. By Waldemar Januszczak