The 21-year-old man from London has been charged with conspiracy to commit burglary.
Three men were jailed in September for their part in the theft and a 15-year-old boy sentenced to a four-month detention and training order.
The items taken, mostly Ming and Qing dynasty jades thought to be worth from £100,000 to £3m each, have still not been traced after the break-in on April 13.
