And the Premier League’s new boys have now secured his services permanently, which angered Noble.
He tweeted: “As the captain of this soccer club I’m drained, angry and sad that Grady is gone, a great kid with a great future !!!!! ”
Diangana has made 31 appearances for West Brom, scoring eight times.
West Ham, however, defended their decision to sell the promising 22-year-old as he sought to build under David Moyes.
They said: “The decision to sell Grady was taken grudgingly but – ultimately – in the best interests of the Club and in order to strengthen the team in different areas at the moment.
“The money received for Grady will be fully reinvested in the team, in accordance with the manager’s objectives.
“We believe this will give us the best possible chance to ensure that we have a balanced squad to play in the Premier League and capable of achieving our goals and ambitions this season. “
Diangana, for all his quality, however, would have faced many competitions for a starting place at the London Stadium.
Moyes has a choice of Felipe Anderson, Michail Antonio, Pablo Fornals, Robert Snodgrass, and Andriy Yarmolenko in wide areas.
The first of these has been linked with a move to Arsenal as Moyes sought to shape his squad.
The Scot is on his second stint as West Ham boss, but has never taken advantage of a summer transfer window.