The Senegal international has been in sparkling form this term, with his performances helping to propel the Hammers into the top half of the Premier League.
It has prompted interest from a host of top-flight clubs, and Wenger has taken not of Diamé’s match-winning displays, particularly in a 3-1 victory over Chelsea.
“He has a great presence and can drive the midfield,” said Wenger.
“I’ve seen him in games where he’s had a big impact, for example against Chelsea. ”
Last week, West Ham manager Sam Allardyce played down the chances of Diamé completing a possible switch across London to the Gunners.
“You are always worried about losing players but we have not had a bid from Arsenal for Diamé. I can’t see where he would fit into their side,” said Allardyce.