In 1881, a filthy, flaking canvas sold at an auction in The Hague for two guilders plus a 30-cent premium, about 24 euros today. The buyer, Arnoldus Andries des Tombe, acting on the advice of politician Victor de Stuers, had just purchased Johannes Vermeer’s Girl with a Pearl Earring, painted around 1665. This deep dive strips away the tote bags and coffee mugs to examine the physical canvas itself, beginning with the Mauritshuis museum’s 2018 Girl in the Spotlight project, in which conservator Abbie Vandivere and an international team scanned the painting in a glass laboratory as the public watched.

Their findings rewrote the painting. The flat dark void behind the girl was originally a folded green curtain, painted with organic indigo and weld pigments that faded under centuries of light while the stable bone black beneath survived. Microscopes revealed delicate eyelashes long assumed absent. The episode also explores astrophysicist Vincent Icke’s 2014 argument that the earring’s sharp specular reflection, shape, and size suggest polished tin rather than a pearl, and notes that the jewel has no hook and no contour, just floating dabs of white paint. From there the hosts explain the Dutch concept of a tronie, weigh identity theories including Andrew Graham-Dixon’s Magdalena van Ruijven hypothesis, recount the painting’s World War II hiding place in climate-controlled vaults inside the limestone caves near Maastricht, and trace its evolving titles and reinventions by Tracy Chevalier, Herman Braun-Vega, Awol Erizku, Banksy, and the Just Stop Oil protesters of October 2022.

• How chemical degradation erased a green curtain and how X-rays found it again
• The three optical clues an astrophysicist used to question whether the earring is a pearl at all
• Why the ultramarine in her turban, made from lapis lazuli mined in Afghanistan, tells a story of global trade
• What a tronie is and why the model’s identity was never meant to be recorded
• How the painting’s title changed from tronie in the Turkish fashion to Girl with a Turban to its current name only in the 1990s