How can a table cost so much?
"There's two parts to the price," Mr Tomlinson explained. "First, you've got its history." By that, he is referring to the table's nearly unbroken stretch of royal ownership. Thanks to European monarchs' enduring (and ultimately devastating) tendency to marry their cousins, the table managed to stayed in the immediate Medici family for more than a century, first in the Florentine palace Casino di San Marco, then in the Pitti Palace.
After the Medicis died out (Anna Maria Luisa de' Medici, who died in 1743, was the last direct heir), the duchy of Tuscany was given to Holy Roman Emperor Francis I, husband of the Austrian Empress, Maria Theresa. His family then passed the table through inheritance for three further generations; by 1800, it had been moved to the nearby Palazzo Vecchio. (No small feat, given that the tabletop alone weighs more than half a tonne.) After that, it passed, also through inheritance, into the house of Bourbon-Parma.
The table was eventually moved back to the Pitti Palace and - after a brief stint in the hands of Napoleon Bonaparte's sister, Elisa, whom he had appointed Grand Duchess of Tuscany (she was forced to abdicate when Napoleon fell from power) - the table returned to the house of Habsburg-Lorraine, where it stayed for 40 years, until it was transferred to Florence's Opificio delle Pietre Dure, the court's official pietre dure workshop.
It was subsequently sold in 1870 by the Italian state to a British art dealer named William Spence, who turned around and sold it to Hugh Lupus Grosvenor, who would become first Duke of Westminster. The table was duly shipped from Italy to Grosvenor House, the family's massive townhouse in London's Mayfair, and stayed there for 70 years. In 1953, the family put the table up for auction, at which it passed into private, non-royal hands.
"You've got these 400 years of extraordinary provenance, which is very hard to find," said Mr Tomlinson. "And then you combine that with Vasari, and it's just extraordinary."
It is not just about who owned the table, though. There is the object itself. It is more than five feet (1.5 m) long and three-and-a-half feet wide, and covered in giant pieces of agate, jasper, lapis lazuli, and other stones.
"The more translucent stones have silver leaf underneath, so they shine," Mr Tomlinson said. "I had an expert come in here and tell me, 'You're lighting it all wrong, you should be lighting it by candlelight.'"