Rembrandt's portrait Jacapo de le Genyn III may be the most stolen picture from the same gallery in the world – four times from the Dulwich Picture Gallery – but its premiums are not likely to rise, claims Sarah Jackson from the Art Loss Register.

The Dulwich Picture Gallery has recently been listed in the Guinness Book of Records for having its Rembrandt stolen so many times.

"The only way thieves could get sell the painting is through exchanging it for drugs or money laundering," Jackson said.

She does not expect it would affect premium prices as thieves would be unable to sell it.

Security has stepped at the gallery to protect the Rembrandt portrait of a tranquil young man. Dulwich has invested £8.3m in state-of-the-art security for the gallery. She added: "Paintings of that standing could never be sold on the open market. No reputable art dealer would touch a painting of this calibre.