Diaspora buyers are the biggest demand source in African art. No index tracks them.

When Sotheby's launched its first dedicated Modern & Contemporary African Art sale in 2017, department head Hannah O'Leary didn't point to a museum show or a record price. She pointed to the buyers. She said she had seen "an exponential increase in market demand from collectors in Africa and the African diaspora." Nine years later, that's still the working theory behind most of the growth in this market. Nobody has ever measured it.

What's known

The scale of the demand isn't in question. Auction sales of Modern & Contemporary African art reached $62.8 million in 2025, up 42.6% on the year before. At a later Sotheby's sale in the same category, a 75-lot auction brought in £2.3 million, above its high estimate, with African collectors making up 70% of the buyers. That figure sounds like an answer. It isn't one. "African" in a saleroom report means based on the continent. It says nothing about a buyer who grew up in Lagos and now lives in London, or one who was born in Houston to Ghanaian parents and has never set foot in Accra. Diaspora status and continent of residence are different facts, and every public sales report collapses them into one.

The market's own benchmark survey has the identical gap. The Art Basel/UBS Global Art Market Report found that African dealers reported only 30% of their 2025 sales value came from within the region, the lowest share of any of the eleven world markets it tracks. Read plainly, that means seven in every ten dollars spent on African art leaves the continent to find a seller, or arrives from outside it to find a buyer. The report doesn't say which. It wasn't built to ask whether that outside money is diaspora capital, Western collectors buying into a trend, or some mix of both. Import duties running 20% to 30% in several African markets give one reason the trade so often happens elsewhere, but they don't explain who is actually signing the cheques.

Even the one event built specifically around this question comes up short. The 1-54 Contemporary African Art Fair was founded in 2013 to show, in its own words, both artists resident in Africa and "practitioners in the diasporic community." Its 2022 London fair, staged with Christie's, produced a white paper framed around exactly that mix of buyers. What that paper hasn't published, at least not anywhere visible, is a breakdown of how many of its buyers actually are diaspora collectors versus anyone else who showed up. A 2020 report on the fair's Marrakech edition found that most works sold there end up in Europe and North America, alongside a growing number of African collectors building their own private museums. Where the money for either group originates is left to the reader's imagination.