The Uruguay international was booked following a collision with Manchester United defender Jonny Evans during the clash at Anfield on Sunday and the Reds skipper believes the 25-year-old has an unfair reputation for going down easily inside the penalty area.
Gerrard was, however, careful not to suggest that Suarez is completely innocent of simulation, and refused to deny his booking for a similar offence against Sunderland was unfairly given.
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"I think even when Luis does get blatant penalties now he doesn't get them," Gerrard told reporters.
"It is down to referees to not judge him and give what they see - if it's not a penalty, don't give him one but if it's clear give it.
"He was booked at Sunderland but against United it was a penalty."
Johnson echoed his skipper’s sentiments regarding Suarez, adding that a referee must make instinctive decisions and not allow any previous behaviour to fog their judgement.
Johnson added: "Everyone has to do their job: they have to forget about who they are looking at and make their decisions and not let anything from the past affect their decision.
"They have to call the shots at the time, regardless of who it is."
Manager Brendan Rodgers admitted that diving is definitely an issue in the modern game, but urged officials not to be fooled by acts of simulation - while insisting Suarez has been unfairly treated in recent weeks.
"You see it in the modern game, across the board, a number of players go to ground too easily and they get their rewards sometimes," he added.
"If you look at Luis last week away at Sunderland he goes down, there is contact but he gets booked for it then yesterday he didn't get it."